[n] M. Berz, “Differential Algebra, A New Tool”, in Proc. PAC'89, Chicago, IL, USA, Mar. 1989, pp. 1419-1424.
%\cite{Berz:PAC89} \bibitem{Berz:PAC89} M. Berz, \textquotedblleft{Differential Algebra, A New Tool}\textquotedblright, in \emph{Proc. PAC’89}, Chicago, IL, USA, Mar. 1989, pp. 1419--1424.
@inproceedings{berz:pac89, author = {M. Berz}, title = {{Differential Algebra, A New Tool}}, booktitle = {Proc. PAC'89}, pages = {1419--1424}, paper = {}, venue = {Chicago, IL, USA, Mar. 1989}, publisher = {JACoW Publishing, Geneva, Switzerland}, language = {english} }