1]“Horia Hulubei” National R&D Institute for Physics and Nuclear Engineering,
Reactorului 30, RO-077125, P.O.B. MG-6, Măgurele-Bucharest, Romania, EU
<EMAIL_ADDRESS>2]Department of Diligent Testing, University for
Beautiful Typesetting,
Minerva 123, UK-CK734PR, Mallaig, Scotland, UK
<EMAIL_ADDRESS>
# Romanian Journal of Physics
LaTeX 2ε class for authors

A. T. Grecu  John Doe  Jane Doe  [  [  [

###### Abstract

This paper is supposed to act as a helpful example of how to correctly typeset
your contributions before submitting them to the Romanian Journal of Physics.
Please, beware that failing to provide your contribution using this LaTeX
style may result in indefinite delays in publishing your paper even after
receiving the reviewers’ recommendations for publication.

###### keywords:

Physics literature and publications, editorials, publications in electronic
media, journal paper

##  1 LaTeX compatibility

The Romanian Journal of Physics (RJP) style was designed to allow authors, who
use mainly LaTeX for typesetting their papers, to submit contributions to this
journal of the Romanian Academy Publishing House. At the same time, by using
this style, the authors will have much better control over the final layout of
their paper and they will know the number of pages their contribution will
occupy when bound in the printed volume (of course only if their contribution
will first be accepted and recommended by RJP’s referees for publication).

The first version of this custom made class appeared in December 2010. Given
the time of release the developer made the choice as to support only LaTeX
versions newer than LaTeX 2ε. The style was developed for 2.7 updated to the
latest versions of its packages that were available in September 2010 when the
work began. Though is a distribution which is mostly centered on providing
LaTeX support for MS Windows OS, the class was also successfully tested on a
major Linux distribution that uses (2010). As of 2012 the development
continues on major Linux distributions. Nevertheless, the developer encourages
the contributing authors to test the present class on as many distributions
and configurations as possible and announce whenever they find
incompatibilities or errors (please, use the following e-mail address for
reporting bugs and issues to the present developer Mr. A.T. Grecu:
redactor.rjp@gmail.com). For this purpose, we’ll mention below the list of
incompatible packages as well as the list of used packages.

Due to the fact that the RJP style is a fresh document class (which tries to
comply as much as possible to an existing MS Word template) and the technical
support will be provided at least for some years to come, the style isn’t yet
included in any major LaTeX 2ε distribution and it is also modular, meaning
that its code resides in more than one file. Therefore we recommend authors to
keep all the files (better the compressed archive available online) and copy
them in a new directory when starting to typeset a new contribution for RJP.
Of course, every now and then (in average every 6 months), you are advised to
visit the RJP web site and look for newer versions of this style. In the
following, we give the list of files in which the LaTeX code is contained, in
order of their importance:

  1. 1.

rjparticle.cls – here, the main code of the class resides;

  2. 2.

rjp_fonts.cfg – this file defines some font related parameters;

  3. 3.

rjp_size11.clo – here is the LaTeX code for page layout;

  4. 4.

rjp_README.txt – this file contains a very short version of the essential
documentation for using the class and a (not very up-to-date) reference of the
new and changed LaTeX commands.

###  1.1 Incompatible Packages

The RJP style was designed to refuse loading specific packages either because
parts of them are already incorporated into the code, because they are (too)
obsolete or their usage leads to unwanted issues affecting the resuting PDF
files. Although the list of incompatible packages is expected to change quite
often in time, we give here the minimal list: authblk, truncate, mathptmx,
caption, subfigure, cite, pictexwd. The package subfig is however loaded but
only in a special combination with the package caption and using specific
options,

⬇

\usepackage[labelseparator=none,font=footnotesize,justification=centerlast]{caption,subfig}

It is recommended that this particular suite of options should not to be
changed by the user.

###  1.2 Automatically loaded packages

The packages which are loaded automatically by the RJP style are: textcase,
truncate, xcolor which are used internally, amsfonts, amsmath, amssymb to
allow authors to use the mathematical environments provided therein rather
than the normal and limited LaTeX 2ε environments (especially eqnarray is
advised to be replaced by environments from the AMS style - i.e. split,
align), cite to force compression of the citation lists and upgreek to allow
authors to specify Greek characters in text mode according to the
international publishing rules (straight symbols rather than slanted as in
LaTeXmath mode especially when using units e.g. $\upmu$m). A further set of
packages is explicitly loaded for use in the internals of the class: textcase,
truncate, ifpdf, placeins, randtext, natbib, hyperref.

As the packages mentioned above are already loaded please do not use
usepackage command to load them again. If you need special options to be
passed to them use the following command:

⬇

\PassOptionsToPackage{<list_of_options>}{<package_name>},

for each package, before the documentclass{rjparticle} declaration. Of course,
passing or changing the tested package options may have unwanted effects and
you should be aware you’re doing this at your own risk, the RJP redaction
assuming no liability for delays in processing your paper for publication.

In order to further ease the processing of their contributions, authors are
recommended not to define special commands in the header of their LaTeX 2ε
document without consulting the already defined commands in the file
rjp_mathdefs.tex. Definition of short commands with the whole purpose of
seemingly reducing the number of typed characters is strongly discouraged.
Please, be aware that some of these commands may come in conflict with the
macros used internally by the RJP redactional team which in turn would result
in further delays in processing and publishing your accepted manuscript. A
similar warning concerns the clogging of the document header with many unused
commands which have to be tested individually before being removed from the
processed document source.

###  1.3 RJP style options

The RJP article document class implements a small but growing number of
options. Some of the options have the same names and mostly the same effect as
the options of the standard LaTeX article class while some of them are
particular to the present class. Here is a list of the currently implemented
options:

  1. -

oneside – option (common to article class) influences slightly the page layout
and headers;

  2. -

twoside – option (common to article class) is the default option used by the
rjparticle class and has the same effect as it counter part in article class;

  3. -

draft – has the same effect as the option with the same name on packages like
graphicx; besides it loads the package showkeys when used;

  4. -

final – it is active by default, having the same effect as the option with the
same name on the common article class;

  5. -

noadjustcites – this option sends the noadjust option to the cite package; its
purpose is to disable some issues with reference formatting when the style
used in the \cite command doesn’t comply to the specifications of cite
package. Specifically if one uses \cite{ref1}-\cite{ref3} instead of
\cite{ref1, ref2, ref3} some spaces would appear around the em-dash ”–“ which
are not aesthetic and the usage of this option removes them;

  6. -

rjpdebug – this option activates the debugging output specific to the insides
of the class; it should not be used by authors unless specifically instructed
by the class developer.

##  2 Specific Commands

The present style modifies a couple of common LaTeX commands and implements a
few new ones. The modified commands are related mostly to the layout on the
first page of the document (title, authors, affiliations and abstract).

The title command accepts the new line character ”\\\“ in its argument but,
when inserted into the document, the title is written uppercase. The same
transformation is forced upon first and second level section titles (section
and subsection commands). There is however a special command to be used
whenever acronyms or words with special lower case letters must appear in the
text, namely NoCaseChange (defined in the textcase package). Its effect is
that the argument appears in the text unmodified by letter casing commands
(also implemented by textcase package). For instance

⬇

\title{Lagrangean \NoCaseChange{sp(3)} BRST Formalism \\\ for Massive
Vectorial Bosonic Fields}

will appear on the first page as

LAGRANGEAN sp(3) BRST FORMALISM

FOR MASSIVE VECTORIAL BOSONIC FIELDS

The author command is slightly different than the one implemented by the
standard article class. Its new syntax is

⬇

\author[<affiliation_sign(s)>]{<author_name>}

and must be issued for each of the authors. It adds the author_name at the end
of the list of authors for your paper (beware that the order of the authors in
the list is therefore given by the order of their corresponding author
commands!). It also assigns the affiliation key (or list of comma separated
keys) affiliation_sign(s) to the current author. The keys are recommended to
be either number or lower case letters and they should be set incrementally
starting with ’1’, respectively ’$a$’. In the case that all the authors have
the same affiliation this key may be absent. As one may notice analyzing the
source of this document, we prefer the contact information such as emails to
appear in the affiliation block corresponding to the author, alphabetically
indexed (whenever the affiliation is shared with other author(s)) and in
italics. Beware that the responsibility of using the appropriate keys for
author(s) and affiliation(s) belongs to the authors of the scientific
material! Obvious inconsistencies will be scrutinized by the editorial
personnel when encountered but the RJP editorial office will not check the
validity of the provided data nor it can be held responsible if invalid
affiliations are published! As one may also notice the first argument of the
\author command can contain links to various notes regarding the status of a
specific author and this information is introduced using the command

⬇

\authnote{<note_text>}

(see the LaTeX source of this document for an example – Jane Doe). No comma
must appear after the last affiliation_sign(s) key and a following authnote
command.

In close relation to the author list, one must introduce the affiliation list
using the command

⬇

\affil[<affiliation_sign(s)>]{<affiliation_text>}

where affiliation_sign(s) is the specific symbol key used for (and only for)
the currently entered affiliation and which must also appear next to at least
one of the authors in the author list. As for the author list the affiliation
list must be defined in the exact order they need to appear in the text
(keeping in mind that the keys must be in low-to-high order). The affiliation
key may again be missing if and only if all the authors are affiliated to the
same department, institute/company and so on. The affiliation_text may contain
the end-of-line command that should be used at specific points in the text
where a new line is required for aesthetic reasons(symmetry of centred lines)
or clarity. We recommend however that one should not abuse of this feature in
order to minimize the vertical space occupied by such informations on the
first page.

In version 1.1 from 2015 a new command (rjpNoMark) was introduced for
exclusive use in optional affiliation sign argument of author and affil
commands to suppress the output of arabic 1 symbol when only one affiliation
is defined for all(multiple) authors.

Among the new commands defined by the RJP style there are

⬇

\keywords{<comma_separated_list_of_key_words>}

which must appear in the header of the document (before begin{document}) or at
most before \begin{abstract} is issued to have any effect at all. Moreover the
list of key words should not end with a period ’.’ as it is automatically
added by the class code.

⬇

\pacs{<list_of_PACS_numbers>}

allows one to specify PACS identifiers as a comma separated list.

There is a special environment for specifying the acknowledgements

⬇

\begin{acknowledgement}…\end{acknowledgement}

The acknowledgements are usually typeset in a font face of size 9pt so please
do not use font size changing commands (they will be removed in editorial
processing). Special formatting such as bold, italic or slanted are accepted
and recommended as the way to emphasize any fragments of the text that you
consider necessary.

##  3 Examples for various Environments

This section includes examples of different environments containing media and
data material (the copyright of which is already owned by RJP) much needed in
any good scientific publication. For instance below (in figure 1) we present a
figure environment as it must appear in every contribution submitted to our
journal (this picture is in PNG format so compiling must be done using
pdflatex command rather than the usual latex command or one should specify the
pdftex driver when loading the graphicx package).

Figure 1: This is a sample picture taken from RJP volume 50(1-2) from page 129
(2005).It illustrates (hashed areas) the instability domains for a series of
nonlinear Schrödinger equations determined using the deterministic approach to
modulational instability.

Another environment with special formatting in our style is the table
environment, a sample of which is table 1. Please, do notice that the caption
of tables is usually placed before the main body and therefore, you are
required to write the caption{…} command immediately after begin{table}… !

Table 1: This table is taken from RJP volume 50(1-2) from page 43 (2005). It gives the “ number of bound states dependence on the radius of space curvature for $\alpha=0.005$, $U_{0}=1$”. Value $\rho$ | Value $\varepsilon$
---|---
$\rho=50$ | –
$\rho=100$ | –
$\rho=250$ | $\varepsilon_{1}=0.0289$
$\rho=400$ | $\varepsilon_{1}=0.3772$
$\rho=1000$ |  $\varepsilon_{1}=0.4142$, $\varepsilon_{2}=0.8495$

As RJP is a physics journal, an important part of the scientific language used
in the publication is constituted by equations. One of the main reason for
which the developer decided to include the AMS style within the RJP style is
the appropriate formatting of the mathematical environments. For instance the
split or align environment is recommended as a very good replacement of the
eqnarray environment. You can see the difference between split and eqnarray in
equation (1) and (2), respectively. An even better layout may be obtained if
one uses the aligned environment inside the equation or the multline
environment as in (3), respectively (4).

$\begin{split}S_{0}&[A^{\mu},\dot{A}^{\mu},\phi]=\int d^{4}x\mathcal{L}=\int
d^{4}x\ (-\frac{1}{4}F_{\mu\nu}F^{\mu\nu}-\\\
&-k~{}\partial_{\lambda}F^{\alpha\lambda}\partial_{\rho}F_{\alpha}^{\rho}+\frac{1}{2}(\partial_{\mu}\phi-
mA_{\mu})(\partial^{\mu}\phi-mA^{\mu}))\end{split}$ (1) $\displaystyle
S_{0}[A^{\mu},\dot{A}^{\mu},\phi]=\int d^{4}x\mathcal{L}=\int d^{4}x\
(-\frac{1}{4}F_{\mu\nu}F^{\mu\nu}-$ (2)
$\displaystyle-k~{}\partial_{\lambda}F^{\alpha\lambda}\partial_{\rho}F_{\alpha}^{\rho}+\frac{1}{2}(\partial_{\mu}\phi-
mA_{\mu})(\partial^{\mu}\phi-mA^{\mu}))$ $\displaystyle S_{0}$
$\displaystyle[A^{\mu},\dot{A}^{\mu},\phi]=\int d^{4}x\mathcal{L}=\int d^{4}x\
(-\frac{1}{4}F_{\mu\nu}F^{\mu\nu}-$ (3)
$\displaystyle-k~{}\partial_{\lambda}F^{\alpha\lambda}\partial_{\rho}F_{\alpha}^{\rho}+\frac{1}{2}(\partial_{\mu}\phi-
mA_{\mu})(\partial^{\mu}\phi-mA^{\mu}))$
$S_{0}[A^{\mu},\dot{A}^{\mu},\phi]=\int d^{4}x\mathcal{L}=\int d^{4}x\
(-\frac{1}{4}F_{\mu\nu}F^{\mu\nu}-\\\
-k\partial_{\lambda}F^{\alpha\lambda}\partial_{\rho}F_{\alpha}^{\rho}+\frac{1}{2}(\partial_{\mu}\phi-
mA_{\mu})(\partial^{\mu}\phi-mA^{\mu}))$ (4)

Please, be advised that since 2012 the RJP document class issues errors
whenever more than 3 eqnarray environments are encountered in one section of
an article! This measure was required due to abusive use of this environment
which hinders the processing of documents before publishing.

The AMS style also allows one to easily make use of subequations

$\displaystyle\frac{\ddot{a}_{2}}{a_{2}}+\frac{\ddot{a}_{3}}{a_{3}}+\frac{\dot{a}_{2}}{a_{2}}\frac{\dot{a}_{3}}{a_{3}}-\frac{n^{2}}{a_{3}^{2}}$
$\displaystyle=\kappa T_{1}^{1}\,,$ (5a)
$\displaystyle\frac{\ddot{a}_{3}}{a_{3}}+\frac{\ddot{a}_{1}}{a_{1}}+\frac{\dot{a}_{3}}{a_{3}}\frac{\dot{a}_{1}}{a_{1}}-\frac{m^{2}}{a_{3}^{2}}$
$\displaystyle=\kappa T_{2}^{2}\,,$ (5b)
$\displaystyle\frac{\ddot{a}_{1}}{a_{1}}+\frac{\ddot{a}_{2}}{a_{2}}+\frac{\dot{a}_{1}}{a_{1}}\frac{\dot{a}_{2}}{a_{2}}+\frac{mn}{a_{3}^{2}}$
$\displaystyle=\kappa T_{3}^{3}\,,$ (5c)
$\displaystyle\frac{\dot{a}_{1}}{a_{1}}\frac{\dot{a}_{2}}{a_{2}}+\frac{\dot{a}_{2}}{a_{2}}\frac{\dot{a}_{3}}{a_{3}}+\frac{\dot{a}_{3}}{a_{3}}\frac{\dot{a}_{1}}{a_{1}}-\frac{m^{2}-mn+n^{2}}{a_{3}^{2}}$
$\displaystyle=\kappa T_{0}^{0}\,,$ (5d) $\displaystyle
m\frac{\dot{a}_{1}}{a_{1}}-n\frac{\dot{a}_{2}}{a_{2}}-(m-n)\frac{\dot{a}_{3}}{a_{3}}$
$\displaystyle=\kappa T_{3}^{0}\,.$ (5e)

though one should consult the AMS user guide [23] when special features like
splitting subequations between subsequent pages are needed (see [23] ver. 2.0,
revised 2002, p. 9-10). Please notice that the subequations environment
presents the advantage of referencing both the whole group of equations (5) or
each of the sub-equations individually, e.g. (5c). Of course, there are other
mathematical AMS environments that the author may use in their papers and to
learn about them one should consult the afore-mentioned user guide.

##  4 Instead of Conclusions

The current style provides a few elements of both authenticity for us (the
headers and footers) as well as a way for you, the author, to certify (to
third parties) the submission of a manuscript to our journal. Most of the
formatting is done automatically in the background so you must not interfere
with elements such as page layout parameters, spacing parameters used in
various environments or font sizes. In 2012 a minimal mechanism was
implemented to detect page layout modification. Upon detection the document
output is stopped until the author removes the preamble commands or the
packages causing the page geometry modification. We admit however that in
certain conditions (especially when lots of floating environments (figures and
tables) are used) the author may need to issue special commands to force the
output of floats on specific pages (such commands are \clearpage, \newpage,
etc.). Of course these commands are allowed in your LaTeX code. However,
please do not drastically modify font sizes used in various environments nor
force vertical or horizontal space in your article! Such actions will be
considered an abuse and will hinder our efforts to publish your accepted paper
as soon as possible, most likely leading to indefinite delays in publication.
We also recommend that you do a spelling before submitting your article and
use the \hyphenation command (or hyphenation marks) whenever necessary.

These recommendations should be taken into account together with the
instructions for authors available for consulting on the Romanian Journal of
Physics web site when submitting articles written in LaTeX to our journal.
Please, be advised that failure to comply may lead to indefinite delays in the
publication of your submitted article even if the referees gave you a positive
recommendation!

The current style (Dec. 2013) is being constantly improved and patched,
therefore comments and contributions to the development of the code as well as
help in debugging specific issues is and will always be highly regarded by our
editorial team!

Last but not least, we give some real references to works by scientists who
became very well-known (publicly) during the year 2010 in physics [24, 25, 26]
and mathematics [27, 28, 29].

##  5 Log of changes

###  5.1 version 2.0 r2022a

  * -

Updated commands arxiv, arxivold, doi to match definitions in the editorial
style. These commands allow the inclusion of hyperlinks mainly in the
bibliography. The two versions of the arxiv command produce the hyperlinks to
the abstract of the corresponding arXiv entry. The ...old command requires two
arguments to be able to construct the correct URL of the arXiv entry and it is
to be used for references to entries before the major change in indexing in
arXiv repository (when domain prefix was included in the URL). The newer arxiv
command treats the domain as an optional argument which (if present) will be
typeset and not included in the linked URL. The doi[…text…]{…doi_code…}
command needs two arguments, of which the first (if provided) is typeset as it
is otherwise it is replaced by the URL to the doi.org record, e.g.

doi{10.1111/210192810} $\longrightarrow$ 10.1111/210192810

doi[J. Beaut. Typeset. 38, 1-12 (2022)]{10.2212/i222-ab123} $\longrightarrow$
[J. Beaut. Typeset. 38, 1-12 (2022)]10.2212/i222-ab123

  * -

Imported commands emailca and emails from the editorial style. These commands
are to be used in the affiliation field(s) – the afill command – to indicate
the “corresponding author” of a submitted paper or a list of emails for a
given author, respectively. emailca requires two arguments, where the first
must match the symbol in the upper indexes following the author name (author
command). emails has only one argument which is the list of emails (preferably
separated by commas and a space so that hyphenation is done correctly by the
LaTeXengine).

  * -

pacs command to be marked as obsolete since the journal seems to not using
this information any longer. Please, rather provide at least 3 key words for
your contribution!

###  5.2 version 2.0 r2018a

  * -

disable use of bibliographic data bases in .bib format according to EB
decision

###  5.3 version 2.0 r2017b

  * -

changed bibliography code to avoid breaking bibliographic entries between
pages

###  5.4 version 1.1 r2016a

  * -

added mathlines option to lineno package in order to count also lines with
mathematical formula

  * -

bilbliography style rjpstyle(.bst) was customized to improve parsing of bibtex
bibliography data bases. It is recommended that empty fields in records from
such data bases should be written as $<$field name$>$ = {},

###  5.5 version 1.1 r2015a

  * -

added rjpNoMark command (see text above for details)

  * -

change citation management package from cite to natbib

  * -

included hyperref package to enable internal and external links in produced
PDF files

  * -

two new commands arxiv and doi are introduced in order to facilitate linking
the references to external resources.
arxiv has two arguments, one of which is mandatory and must be the article
number in the system. The optional argument is the domain abbreviation.
doi takes also two arguments, the mandatory one being the Digital Object
Identifier (DOI) of the referenced external resource while the optional
argument can be whatever text the user wants to be displayed for the link in
the PDF document. When not provided a default text is inserted of the form
DOI:$<$doi-number$>$.

###  5.6 version 1.0 r2013b, class date: November, 2013

  * -

adjusted alignment of subsequent lines in a bibliography entry

  * -

adjourned this document and clean-up of rjp_mathdefs.tex auxiliary macro file.

###  5.7 version 1.0 r2013a, class date: February 9, 2013

  * -

command \email is available in \affil command

###  5.8 Release 2012c

  * -

replaced color package by the modern, improved xcolor package

  * -

the class now uses by default the lineno package in order to facilitate the
reviewing process by marking the lines in the manuscripts

  * -

the graphicx package is now instructed to search for figures in figs directory
under the current path, i.e. ./figs/

##  6 Macros available in rjp_mathdefs.tex

The list below contains the LaTeX macros available through the
rjp_mathdefs.tex file. Please, do consider these macros and try to avoid
redefining or clashing with their names in your own contribution. Contrarily
to limitations on the definition and use of user macros which other journals
enforce, most of the macros described below are introduced using the
providecommand command which gives you the liberty to overwrite them at will.
However, we would very much appreciate and acknowledge if you minimize in your
contribution the use of packages or user macros the functionality of which is
not needed to generate the final PDF document ( before sending your
contribution please, take a few extra minutes to remove un-used usepackage{…}
and macros from your LaTeX file).

\beq ... \eeq – these shortcut command replace the start and end commands for
the equation environment; beq has an optional argument which is used as the
label of the equation, therefore avoid starting your equation with the ’[’
character place right after beq.
\beqn ... \eeqn – shortcut command for the star version of the equation
environment
jsn,…jds,…jcd – the complete list of Jacobi elliptic functions defined by pre-
pending j to their names as consecrated in literature
ddiv and grad – if you prefer to avoid denoting the operators using $\nabla$.
ee – the transitional number $\mathrm{e}=2.7178...$ as a mathematical operator
(straight font)
Tr – the matrix trace operator in straight font
Img/Rel – to specify the imaginary part coefficient/real part for a complex
quantity $z$ so that $z=\mathrm{Re}z+i\;\mathrm{Im}z$
sgn – the sign function in straight font
cosec – the co-secant trigonometric function ($1/\cos$)
artanh – the inverse of the $\tanh$ hyperbolic function ($\tanh^{-1}$)
sech and cosech – hyperbolic functions $1/\cosh$ and $1/\sinh=\mathrm{csch}$,
respectively.
eps – for $\varepsilon$
cc – to input complex conjugate abbreviation in math and text mode followed by
a small (non-breakable) blank
ict – to input $\mathcal{C}$ in math mode and C in text mode as a symbol for
an arbitrary integration constant
pd – shortcut for $\partial$, partial derivative in math mode
fd – output the full derivative symbol (d) in straight font in math mode (very
useful for writing nice derivatives and integrals)
bra, ket and braket – to print out bra and ket wave-vectors with correct
scaling of the surrounding symbols (1 argument) or the quantum matrix element
of an operator given as first argument between two states given as argument 2
and 3 for bra and ket states respectively
fudbud[5], fubu[3], fdbu[3], fdbd[3], fubd[3] – series of commands to arrange
more conveniently upper and lower indexes in front and after a central
symbol/token given first argument of the commands; the names are derived from
“front up-down, back up-down” and the corresponding letter combination
dictates also the order of the remaining arguments, e.g. fubu{A}{i}{j} will
produce ${\\!\;}^{i}\\!\\!A^{j}$.
Set of commands for abbreviation formatting:
eg $\to$ e.g.; ie $\to$ i.e.; etal $\to$ et al.

This list of macros is meant to grow and evolve with the requirements of the
Romanian Journal of Physics publishing authors so please, do not hesitate to
contact the developer of this style for bugs or special commands that you want
us to consider for inclusion. Also, please, take into account that the list
published here may not always be up to date.

The author(s) would like to dedicate this class to the memory of Acad. Dr.
Horia Scutaru a great scientist and supporter of innovation at RJP. A.T.G.
would like to acknowledge the help received from Mrs. Margareta Oancea and the
members of the technical department at the Romanian Academy Publishing House,
in principal, in specifying a LaTeX format that matches as close as possible
the MS Word template that RJP uses officially, but also for carefully and
patiently correcting the various versions produced during development. Last
but not least, the authors owe gratitude to those who made possible that
Donald Knuth’s [2] complex but rigorous TeX[1, 6] evolve into the friendlier
LaTeX 2ε(of course names like Leslie Lamport [8] or the people in the LaTeX3
project led by Frank Mittelbach [9, 10, 11, 12] come to mind). A big “Thanks!”
goes to all the web sites, forums and message lists maintainers out there on
the internet for the documentation and examples they shared with the world in
the obvious effort of teaching people about the ways and wonders of beautiful
typesetting (a small part of these resources are in Refs. [5, 3, 4, 13, 7, 22,
14, 15, 16, 17, 18, 19, 20, 21]).

## References

  * [1] D. E. Knuth, D. R. Bibby, “The TeXbook”, 20th edn. (AMS & Addison-Wesley Publ. Co., 1991).
  * [2] D. E. Knuth homepage: www-cs-faculty.stanford.edu/~knuth.
  * [3] V. Eijkhout, ‘‘TeX by Topic, A TeXnician’s Reference’’ (electronic ver. 1.0, 2001).
  * [4] ‘‘TeXCookbook’’ (MathPro Press, 1989; www.mathpro.com/math/MathPro.html).
  * [5] D. Bausum, ‘‘TeX: Reference and Examples’’ (www.tug.org/utilities/plain/cseq.html).
  * [6] P. W. Abrahams, K. A. Hargreaves, K. Berry, ‘‘TeX for the Impatient’’ (Addison-Wesley Publ. Co., 2003).
  * [7] TeXUsers Group: www.tug.org/tutorials/.
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