[n] J. Bahrdt et al., “In-Vacuum APPLE II Undulator”, in Proc. IPAC'18, Vancouver, Canada, Apr.-May 2018, pp. 4114-4116. doi:10.18429/JACoW-IPAC2018-THPMF031
%\cite{Bahrdt:IPAC18-THPMF031} \bibitem{Bahrdt:IPAC18-THPMF031} J. Bahrdt \emph{et al.}, \textquotedblleft{In-Vacuum APPLE II Undulator}\textquotedblright, in \emph{Proc. IPAC’18}, Vancouver, Canada, Apr.-May 2018, pp. 4114--4116. \url{doi:10.18429/JACoW-IPAC2018-THPMF031}
@inproceedings{bahrdt:ipac18-thpmf031, author = {J. Bahrdt and others}, title = {{In-Vacuum APPLE II Undulator}}, booktitle = {Proc. IPAC'18}, pages = {4114--4116}, paper = {THPMF031}, venue = {Vancouver, Canada, Apr.-May 2018}, publisher = {JACoW Publishing, Geneva, Switzerland}, doi = {10.18429/JACoW-IPAC2018-THPMF031}, url = {http://accelconf.web.cern.ch/ipac2018/papers/THPMF031.pdf}, language = {english} }