[n] J. Butler et al., “Precision Synchrotron Radiation Detectors”, in Proc. PAC'89, Chicago, IL, USA, Mar. 1989, pp. 1544-1547.
%\cite{Butler:PAC89} \bibitem{Butler:PAC89} J. Butler \emph{et al.}, \textquotedblleft{Precision Synchrotron Radiation Detectors}\textquotedblright, in \emph{Proc. PAC’89}, Chicago, IL, USA, Mar. 1989, pp. 1544--1547.
@inproceedings{butler:pac89, author = {J. Butler and others}, title = {{Precision Synchrotron Radiation Detectors}}, booktitle = {Proc. PAC'89}, pages = {1544--1547}, paper = {}, venue = {Chicago, IL, USA, Mar. 1989}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }