[n] S. Fukumoto et al., “Polarized Proton Preaccelerator Program”, in Proc. PAC'81, Washington D.C., USA, Mar. 1981, pp. 2693-2696.
%\cite{Fukumoto:PAC81} \bibitem{Fukumoto:PAC81} S. Fukumoto \emph{et al.}, \textquotedblleft{Polarized Proton Preaccelerator Program}\textquotedblright, in \emph{Proc. PAC’81}, Washington D.C., USA, Mar. 1981, pp. 2693--2696.
@inproceedings{fukumoto:pac81, author = {S. Fukumoto and others}, title = {{Polarized Proton Preaccelerator Program}}, booktitle = {Proc. PAC'81}, pages = {2693--2696}, paper = {}, venue = {Washington D.C., USA, Mar. 1981}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }