\begin{thebibliography}{}

\bibitem[Gavalas et~al., 2014]{gavalas2014mobile}
Gavalas, D., Konstantopoulos, C., Mastakas, K., and Pantziou, G. (2014).
\newblock Mobile recommender systems in tourism.
\newblock {\em Journal of network and computer applications}, 39:319--333.

\bibitem[Jr, 2006]{Nobody06}
Jr, N. (2006).
\newblock My article.

\bibitem[Kourou et~al., 2015]{kourou2015machine}
Kourou, K., Exarchos, T.~P., Exarchos, K.~P., Karamouzis, M.~V., and Fotiadis,
  D.~I. (2015).
\newblock Machine learning applications in cancer prognosis and prediction.
\newblock {\em Computational and structural biotechnology journal}, 13:8--17.

\end{thebibliography}
