[n] N. C. Pering et al., “General Description and Performance Measurements on DESY Linac II Electron-Positron Injector”, in Proc. PAC'71, Chicago, IL, USA, Mar. 1971, pp. 579-584.
%\cite{Pering:PAC71} \bibitem{Pering:PAC71} N. C. Pering \emph{et al.}, \textquotedblleft{General Description and Performance Measurements on DESY Linac II Electron-Positron Injector}\textquotedblright, in \emph{Proc. PAC’71}, Chicago, IL, USA, Mar. 1971, pp. 579--584.
@inproceedings{pering:pac71, author = {N. C. Pering and others}, title = {{General Description and Performance Measurements on DESY Linac II Electron-Positron Injector}}, booktitle = {Proc. PAC'71}, pages = {579--584}, paper = {}, venue = {Chicago, IL, USA}, series = {Particle Accelerator Conference}, number = {4}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {6}, year = {1971}, language = {english} }