[n] John Irwin, “Construction of High Order Maps for Large Proton Accelerators”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 1588-1591.
%\cite{John Irwin:PAC91} \bibitem{John Irwin:PAC91} John Irwin, \textquotedblleft{Construction of High Order Maps for Large Proton Accelerators}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 1588--1591.
@inproceedings{john irwin:pac91, author = {John Irwin}, title = {{Construction of High Order Maps for Large Proton Accelerators}}, booktitle = {Proc. PAC'91}, pages = {1588--1591}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }