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Hi I am unable to get this to work on my Gummi install at home, while it works without problems at work:

\documentclass[review,times,authoryear]{elsarticle}
\usepackage[english]{babel}
\usepackage{natbib}

\begin{document}
Hello \cite{lamport94}

\begin{thebibliography}{9}
\bibitem{lamport94 ...