[n] G. Berger et al., “Production of an Intense 13N Radioactive Ion Beam”, in Proc. EPAC'90, Nice, France, Jun. 1990, pp. 571-574.
%\cite{Berger:EPAC90} \bibitem{Berger:EPAC90} G. Berger \emph{et al.}, \textquotedblleft{Production of an Intense <sup>13</sup>N Radioactive Ion Beam}\textquotedblright, in \emph{Proc. EPAC’90}, Nice, France, Jun. 1990, pp. 571--574.
@inproceedings{berger:epac90, author = {G. Berger and others}, title = {{Production of an Intense <sup>13</sup>N Radioactive Ion Beam}}, booktitle = {Proc. EPAC'90}, pages = {571--574}, paper = {}, venue = {Nice, France, Jun. 1990}, series = {European Particle Accelerator Conference}, number = {2}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }