[n] C. D. Johnson, “The Incoherent Beam-Beam Effect in Linear-on-Ring Colliders”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 254-257.
%\cite{Johnson:PAC91} \bibitem{Johnson:PAC91} C. D. Johnson, \textquotedblleft{The Incoherent Beam-Beam Effect in Linear-on-Ring Colliders}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 254--257.
@inproceedings{johnson:pac91, author = {C. D. Johnson}, title = {{The Incoherent Beam-Beam Effect in Linear-on-Ring Colliders}}, booktitle = {Proc. PAC'91}, pages = {254--257}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }