[n] W. Assmann et al., “Tritron Progress Report”, in Proc. Cyclotrons'89, Berlin, Germany, May 1989, paper B-06, pp. 47-50.
%\cite{Assmann:Cyclotrons89-B-06} \bibitem{Assmann:Cyclotrons89-B-06} W. Assmann \emph{et al.}, \textquotedblleft{Tritron Progress Report}\textquotedblright, in \emph{Proc. Cyclotrons’89}, Berlin, Germany, May 1989, paper B--06, pp. 47--50.
@inproceedings{assmann:cyclotrons89-b-06, author = {W. Assmann and others}, title = {{Tritron Progress Report}}, booktitle = {Proc. Cyclotrons'89}, pages = {47--50}, paper = {B-06}, venue = {Berlin, Germany, May 1989}, publisher = {JACoW Publishing, Geneva, Switzerland}, url = {https://jacow.org/c89/papers/B-06.pdf}, language = {english} }