[n] Y. Q. Liu et al., “Engineering Design of Low-Emittance DC-SRF Photocathode Injector”, in Proc. FEL'19, Hamburg, Germany, Aug. 2019, pp. 460-462. doi:10.18429/JACoW-FEL2019-WEP056
%\cite{Liu:FEL19-WEP056} \bibitem{Liu:FEL19-WEP056} Y. Q. Liu \emph{et al.}, \textquotedblleft{Engineering Design of Low-Emittance DC-SRF Photocathode Injector}\textquotedblright, in \emph{Proc. FEL’19}, Hamburg, Germany, Aug. 2019, pp. 460--462. \url{doi:10.18429/JACoW-FEL2019-WEP056}
@inproceedings{liu:fel19-wep056, author = {Y. Q. Liu and others}, title = {{Engineering Design of Low-Emittance DC-SRF Photocathode Injector}}, booktitle = {Proc. FEL'19}, pages = {460--462}, paper = {WEP056}, venue = {Hamburg, Germany, Aug. 2019}, publisher = {JACoW Publishing, Geneva, Switzerland}, doi = {10.18429/JACoW-FEL2019-WEP056}, url = {https://jacow.org/fel2019/papers/WEP056.pdf}, language = {english} }