[n] Niels Marquardt, “Status of DELTA and Design of its Vacuum System”, in Proc. PAC'91, San Francisco, CA, USA, May 1991, pp. 2862-2865.
%\cite{Niels Marquardt:PAC91} \bibitem{Niels Marquardt:PAC91} Niels Marquardt, \textquotedblleft{Status of DELTA and Design of its Vacuum System}\textquotedblright, in \emph{Proc. PAC’91}, San Francisco, CA, USA, May 1991, pp. 2862--2865.
@inproceedings{niels marquardt:pac91, author = {Niels Marquardt}, title = {{Status of DELTA and Design of its Vacuum System}}, booktitle = {Proc. PAC'91}, pages = {2862--2865}, paper = {}, venue = {San Francisco, CA, USA, May 1991}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }