[n] Y. X. Xu, D. P. May, and R. C. Rogers, “New Design for a Central Region of the K500 Superconducting Cyclotron”, in Proc. Cyclotrons'89, Berlin, Germany, May 1989, paper F6-04, pp. 342-345.
%\cite{YXXu:Cyclotrons89-F6-04} \bibitem{YXXu:Cyclotrons89-F6-04} Y. X. Xu, D. P. May, and R. C. Rogers, \textquotedblleft{New Design for a Central Region of the K500 Superconducting Cyclotron}\textquotedblright, in \emph{Proc. Cyclotrons’89}, Berlin, Germany, May 1989, paper F6--04, pp. 342--345.
@inproceedings{yxxu:cyclotrons89-f6-04, author = {Y. X. Xu and D. P. May and R. C. Rogers}, title = {{New Design for a Central Region of the K500 Superconducting Cyclotron}}, booktitle = {Proc. Cyclotrons'89}, pages = {342--345}, paper = {F6-04}, venue = {Berlin, Germany, May 1989}, publisher = {JACoW Publishing, Geneva, Switzerland}, url = {https://jacow.org/c89/papers/F6-04.pdf}, language = {english} }