[n] H. Lengeler, “Diagnostics for Superconducting r.f. Cavities”, in Proc. PAC'81, Washington D.C., USA, Mar. 1981, pp. 3217-3222.
%\cite{Lengeler:PAC81} \bibitem{Lengeler:PAC81} H. Lengeler, \textquotedblleft{Diagnostics for Superconducting r.f. Cavities}\textquotedblright, in \emph{Proc. PAC’81}, Washington D.C., USA, Mar. 1981, pp. 3217--3222.
@inproceedings{lengeler:pac81, author = {H. Lengeler}, title = {{Diagnostics for Superconducting r.f. Cavities}}, booktitle = {Proc. PAC'81}, pages = {3217--3222}, paper = {}, venue = {Washington D.C., USA, Mar. 1981}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }