[n] D. E. Johnson and D. A. Herrup, “Compensation of Time Varying Fields in the Tevatron Superconducting Magnets”, in Proc. PAC'89, Chicago, IL, USA, Mar. 1989, pp. 521-524.
%\cite{Johnson:PAC89} \bibitem{Johnson:PAC89} D. E. Johnson and D. A. Herrup, \textquotedblleft{Compensation of Time Varying Fields in the Tevatron Superconducting Magnets}\textquotedblright, in \emph{Proc. PAC’89}, Chicago, IL, USA, Mar. 1989, pp. 521--524.
@inproceedings{johnson:pac89, author = {D. E. Johnson and D. A. Herrup}, title = {{Compensation of Time Varying Fields in the Tevatron Superconducting Magnets}}, booktitle = {Proc. PAC'89}, pages = {521--524}, paper = {}, venue = {Chicago, IL, USA, Mar. 1989}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }