[n] K. Halbach, “Permanent Multipole Magnets with Adjusable Strength”, in Proc. PAC'83, Santa Fe, NM, USA, Mar. 1983, pp. 3323-3326.
%\cite{Halbach:PAC83} \bibitem{Halbach:PAC83} K. Halbach, \textquotedblleft{Permanent Multipole Magnets with Adjusable Strength}\textquotedblright, in \emph{Proc. PAC’83}, Santa Fe, NM, USA, Mar. 1983, pp. 3323--3326.
@inproceedings{halbach:pac83, author = {K. Halbach}, title = {{Permanent Multipole Magnets with Adjusable Strength}}, booktitle = {Proc. PAC'83}, pages = {3323--3326}, paper = {}, venue = {Santa Fe, NM, USA, Mar. 1983}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }