[n] D. J. Clark, “Ion Sources for Cyclotrons”, in Proc. Cyclotrons'81, Caen, France, Sep. 1981, paper DI-01, pp. 231-240.
%\cite{Clark:Cyclotrons81-DI-01} \bibitem{Clark:Cyclotrons81-DI-01} D. J. Clark, \textquotedblleft{Ion Sources for Cyclotrons}\textquotedblright, in \emph{Proc. Cyclotrons’81}, Caen, France, Sep. 1981, paper DI--01, pp. 231--240.
@inproceedings{clark:cyclotrons81-di-01, author = {D. J. Clark}, title = {{Ion Sources for Cyclotrons}}, booktitle = {Proc. Cyclotrons'81}, pages = {231--240}, paper = {DI-01}, venue = {Caen, France, Sep. 1981}, publisher = {JACoW Publishing, Geneva, Switzerland}, url = {https://jacow.org/c81/papers/DI-01.pdf}, language = {english} }