I am writing my thesis with LaTeX. I'm citing the used references with apacite. All in all it worked all perfectly. However I'm facing one problem:
In the bibliography I always have space between the volume and the number of an article.
So it looks like this:
Mustermann, M. (2013). Title of the article. Journal of the article, 4 (2), 28-35.
It, however, should look like this:
Mustermann, M. (2013). Title of the article. Journal of the article, 4(2), 28-35.
Here is my TeX file:
\documentclass[a4paper,11pt]{article}
\usepackage{fullpage}
\usepackage[ngerman]{babel}
\usepackage{apacite}
\begin{document}
\section{First Chapter}
Any Text which is cited \cite{test}.
\bibliographystyle{apacite}
\bibliography{apa}
\end{document}
And the related file is this:
@article{test,
title={{Title of the article}},
author={Mustermann, Max},
journal={Journal of the article},
volume={4},
number={2},
pages={28--35},
year={2013}
}
I know it's not much, but my professor criticized it and I want to change it. I read, that I need to alter the .bst-File of apacite, but I have no idea in which way.

\AtBeginDocument{% \makeatletterneeds to be\makeatletter\AtBeginDocument{%catcode changes do nothing in a macro argument. As written\ifx\@empty...compares\@witheso all the tests are false. – David Carlisle Oct 15 '13 at 17:43apacite.styinto\AtBeginDocument{makes the macro works as expected? – moewe Oct 15 '13 at 17:57! LaTeX Error: \APACjournalVolNumPages undefined. Here's my preamble- I assume that the problem is that I'm calling a different package and/or class. Can anyone point me toward a way to modify the MWE code provided above for my situation?\documentclass[12pt,letterpaper,keeplastbox,man,donotrepeattitle,floatsintext]{apa6}\usepackage[style=apa,natbib=true,backend=biber]{biblatex}– Chris Apr 20 '17 at 02:35biblatex. If you want an answer for your set-up withbiblatex, please ask a new question with MWE/MWEB. – moewe Apr 20 '17 at 06:54