\begin{thebibliography}{xx}

\harvarditem{Kuk \& Cheng}{1999}{kuk:chen:1999}
Kuk, A. Y.~C. \& Cheng, Y.~W.  (1999), `Pointwise and functional approximations
  in {Monte Carlo} maximum likelihood estimation', {\em Statistics and
  Computing} {\bf 9},~91--99.

\harvarditem{Zeger}{1988}{zege:1988}
Zeger, S.~L.  (1988), `A regression-model for time-series of counts', {\em
  Biometrika} {\bf 75},~621--629.

\end{thebibliography}