% \usepackage{amsmath, amsthm, amssymb}
\newcommand{\titleref}[1]{\textsl{#1}}
+
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the lazy dog. The quick brown fox jumps over the lazy dog. The quick
brown fox jumps over the lazy dog. The quick brown fox jumps over the
lazy dog. The quick brown fox jumps over the lazy dog. The quick brown
-fox jumps over the lazy dog.
+fox jumps over the lazy dog \cite{989866}.
+
+\bibliography{refs}
+\bibliographystyle{apalike}
\end{document}