\documentclass{nwejm}
\usepackage{lipsum}
\issuesetup{number=1}
\geometry{%
  % verbose%
  % ,showframe%
}
%
\addbibresource{sample.bib}
\addbibresource{biblatex-examples.bib}
%
\begin{document}
\inputarticle[french]{article-in-french}
\inputarticle{article-in-english}
\inputarticle[ngerman]{article-in-german}
\inputarticle[dutch]{article-in-dutch}
\end{document}