[n] D. Berley et al., “Production of Negative Pions of Medical Interest by High-Energy Protons”, in Proc. PAC'73, San Francisco, CA, USA, Mar. 1973, pp. 997-1002.
%\cite{Berley:PAC73} \bibitem{Berley:PAC73} D. Berley \emph{et al.}, \textquotedblleft{Production of Negative Pions of Medical Interest by High-Energy Protons}\textquotedblright, in \emph{Proc. PAC’73}, San Francisco, CA, USA, Mar. 1973, pp. 997--1002.
@inproceedings{berley:pac73, author = {D. Berley and others}, title = {{Production of Negative Pions of Medical Interest by High-Energy Protons}}, booktitle = {Proc. PAC'73}, pages = {997--1002}, paper = {}, venue = {San Francisco, CA, USA}, series = {Particle Accelerator Conference}, number = {5}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1973}, language = {english} }