# Problem in IOP template in two columns and references

I want to use the IOP template from this link:

In this template, I have two problems:

1) The references, I want to cite my references in the context of my paper. I've tried to cite any reference but I could not.

For example:

Welcom for you all \cite{simmons1971conduction}.

The bibliography of the above citation is:

@article{simmons1971conduction,
title={Conduction in thin dielectric films},
author={Simmons, JG},
journal={Journal of Physics D: Applied Physics},
volume={4},
number={5},
pages={613},
year={1971},
publisher={IOP Publishing}
}


Here is the latex code

\documentclass[10pt]{iopart}
\newcommand{\gguide}{{\it Preparing graphics for IOP Publishing journals}}

%Uncomment next line if AMS fonts required

%\usepackage{iopams}

\begin{document}

\title[Author guidelines for IOP Publishing journals in  \LaTeXe]{How to prepare and submit an article for

publication in an IOP Publishing journal using \LaTeXe}

\author{Content \& Services Team}

\address{IOP Publishing, Temple Circus, Temple Way, Bristol BS1 6HG, UK}

\vspace{10pt}

\begin{indented}

\item[]February 2014

\end{indented}

\begin{abstract}

This document describes the  abstract.

\end{abstract}

% Uncomment for PACS numbers
%\pacs{00.00, 20.00, 42.10}
%

% Uncomment for keywords
%\vspace{2pc}
%\noindent{\it Keywords}: XXXXXX, YYYYYYYY, ZZZZZZZZZ
%

% Uncomment for Submitted to journal title message
%\submitto{\JPA}
%
% Uncomment if a separate title page is required

%\maketitle
%
% For two-column output uncomment the next line and choose [10pt] rather than [12pt] in the \documentclass declaration
\ioptwocol

%

\section{Introduction: file preparation and submission}

Welcom for you all \cite{simmons1971conduction}.

\end{document}

• Your MWE is missing a \bibliography statement. – Mico May 20 '15 at 14:47
• I used \bibliography but did not work with me. Can you please tell me how to do it? – Hisham Alghamdi May 20 '15 at 14:49
• \bibliographystyle{apsrev} \bibliography{Ref} but not work – Hisham Alghamdi May 20 '15 at 14:51
• You're probably missing three statements: A \bibliographystyle directive (recommended argument: iopart-num); the instruction \section*{References}, and a \bibliography{...} statement. After providing the missing pieces, be sure to rerun LaTeX, BibTeX, and LaTeX twice more to propagate all changes. – Mico May 20 '15 at 15:02
• Unfortunately not work with me. My knowledge is limited in Latex – Hisham Alghamdi May 20 '15 at 15:21

\section*{References}
\bibliographystyle{iopart-num}
\bibliography{testtesttest}


toward the end of the document, followed by recompiling via LaTeX, BibTeX, and LaTeX twice more, should generate the bibliography as well as the citation call-outs.

\RequirePackage{filecontents}  % just to make this example self-contained
\begin{filecontents}{testtesttest.bib}
@article{simmons1971conduction,
title={Conduction in thin dielectric films},
author={Simmons, J G},
journal={Journal of Physics D: Applied Physics},
volume={4},
number={5},
pages={613},
year={1971},
publisher={IOP Publishing}
}
\end{filecontents}

\documentclass[10pt]{iopart}

\begin{document}

\title[Author guidelines]{How to prepare and submit an article for
publication in an IOP Publishing journal using \LaTeXe}

\author{Content \& Services Team}

\address{IOP Publishing, Temple Circus, Temple Way, Bristol BS1 6HG, UK}

\vspace{10pt}

\begin{indented}

\item[]February 2014

\end{indented}

\begin{abstract}

This section contains the abstract.

\end{abstract}

\ioptwocol

\section{Introduction: File preparation and submission}

Welcome for you all \cite{simmons1971conduction}.

%% The following three instructions are new:

\section*{References}
\bibliographystyle{iopart-num}
\bibliography{testtesttest}

\end{document}

• It showed me this error as you can see on this link: i.stack.imgur.com/TVOFk.png – Hisham Alghamdi May 20 '15 at 15:43
• Also, how can I start the first column from the first page please? – Hisham Alghamdi May 20 '15 at 15:54
• @HishamAlghamdi - Well, the error message says that LaTeX has crashed because it can't write the .aux file. This probably happens because LaTeX doesn't have write access to the directory where the .tex file to be compiled is located. – Mico May 20 '15 at 22:54