[n] W. Gai et al., “Advanced Accelerator Test Facility (AATF) Upgrade Plan”, in Proc. PAC'89, Chicago, IL, USA, Mar. 1989, pp. 612-615.
%\cite{Gai:PAC89} \bibitem{Gai:PAC89} W. Gai \emph{et al.}, \textquotedblleft{Advanced Accelerator Test Facility (AATF) Upgrade Plan}\textquotedblright, in \emph{Proc. PAC’89}, Chicago, IL, USA, Mar. 1989, pp. 612--615.
@inproceedings{gai:pac89, author = {W. Gai and others}, title = {{Advanced Accelerator Test Facility (AATF) Upgrade Plan}}, booktitle = {Proc. PAC'89}, pages = {612--615}, paper = {}, venue = {Chicago, IL, USA, Mar. 1989}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }