[n] R. Maier and U. Hacker, “Beam Diagnostic for COSY-Juelich”, in Proc. PAC'89, Chicago, IL, USA, Mar. 1989, pp. 1574-1577.
%\cite{Maier:PAC89} \bibitem{Maier:PAC89} R. Maier and U. Hacker, \textquotedblleft{Beam Diagnostic for COSY-Juelich}\textquotedblright, in \emph{Proc. PAC’89}, Chicago, IL, USA, Mar. 1989, pp. 1574--1577.
@inproceedings{maier:pac89, author = {R. Maier and U. Hacker}, title = {{Beam Diagnostic for COSY-Juelich}}, booktitle = {Proc. PAC'89}, pages = {1574--1577}, paper = {}, venue = {Chicago, IL, USA, Mar. 1989}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }