[n] R. L. York, D. R. Swenson, D. Tupa, and O. B. van Dyck, “Operation of the Optically Pumped Polarized H- ion Source at LAMPF”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 1928-1931.
%\cite{York:PAC91} \bibitem{York:PAC91} R. L. York, D. R. Swenson, D. Tupa, and O. B. van Dyck, \textquotedblleft{Operation of the Optically Pumped Polarized H- ion Source at LAMPF}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 1928--1931.
@inproceedings{york:pac91, author = {R. L. York and D. R. Swenson and D. Tupa and O. B. van Dyck}, title = {{Operation of the Optically Pumped Polarized H- ion Source at LAMPF}}, booktitle = {Proc. PAC'91}, pages = {1928--1931}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }