[n] H. G. Andresen et al., “Source of Polarized Electrons for MAMI B”, in Proc. EPAC'90, Nice, France, Jun. 1990, pp. 668-670.
%\cite{Andresen:EPAC90} \bibitem{Andresen:EPAC90} H. G. Andresen \emph{et al.}, \textquotedblleft{Source of Polarized Electrons for MAMI B}\textquotedblright, in \emph{Proc. EPAC’90}, Nice, France, Jun. 1990, pp. 668--670.
@inproceedings{andresen:epac90, author = {H. G. Andresen and others}, title = {{Source of Polarized Electrons for MAMI B}}, booktitle = {Proc. EPAC'90}, pages = {668--670}, paper = {}, venue = {Nice, France, Jun. 1990}, series = {European Particle Accelerator Conference}, number = {2}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }