[n] G. Wuestefeld and J. Bahrdt, “Canonical Particle Tracking in Undulator Fields”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 266-269.
%\cite{Wuestefeld:PAC91} \bibitem{Wuestefeld:PAC91} G. Wuestefeld and J. Bahrdt, \textquotedblleft{Canonical Particle Tracking in Undulator Fields}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 266--269.
@inproceedings{wuestefeld:pac91, author = {G. Wuestefeld and J. Bahrdt}, title = {{Canonical Particle Tracking in Undulator Fields}}, booktitle = {Proc. PAC'91}, pages = {266--269}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }