[n] N. Merminga, R. Helm, J. Irwin, and R. D. Ruth, “Optimizing a Nonlinear Collimation System for Future Linear Colliders”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 219-222.
%\cite{Merminga:PAC91} \bibitem{Merminga:PAC91} N. Merminga, R. Helm, J. Irwin, and R. D. Ruth, \textquotedblleft{Optimizing a Nonlinear Collimation System for Future Linear Colliders}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 219--222.
@inproceedings{merminga:pac91, author = {N. Merminga and R. Helm and J. Irwin and R. D. Ruth}, title = {{Optimizing a Nonlinear Collimation System for Future Linear Colliders}}, booktitle = {Proc. PAC'91}, pages = {219--222}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }