[n] A. van Steenbergen, “Progress in High Intensity Ion Source and Accelerator Column Development”, in Proc. LINAC'64, Madison, WI, USA, Jul. 1964, paper PART4-6, pp. 414-429.
%\cite{van Steenbergen:LINAC64-PART4-6} \bibitem{van Steenbergen:LINAC64-PART4-6} A. van Steenbergen, \textquotedblleft{Progress in High Intensity Ion Source and Accelerator Column Development}\textquotedblright, in \emph{Proc. LINAC’64}, Madison, WI, USA, Jul. 1964, paper PART4--6, pp. 414--429.
@inproceedings{van steenbergen:linac64-part4-6, author = {A. van Steenbergen}, title = {{Progress in High Intensity Ion Source and Accelerator Column Development}}, booktitle = {Proc. LINAC'64}, pages = {414--429}, paper = {PART4-6}, venue = {Madison, WI, USA, Jul. 1964}, series = {Linear Accelerator Conference}, publisher = {JACoW Publishing, Geneva, Switzerland}, url = {https://jacow.org/l64/papers/PART4-6.pdf}, language = {english} }