Instead, you may wish to enter the citations directly in the body of the
proposal. In that case, you can use the references environment to
format the list of references. The font size and spacing parameters are
adjusted automatically. For example:
\begin{references}
\reference A. Nonymous et al.\ 2005, \aap 123, 456
\reference A.N. Other \& S.O.M. Ebody 2004, \pasp 123, 456
\end{references}