BibTeX
@ARTICLE{
         Wollnik1988PbG,
       AUTHOR = "H. Wollnik and B. Hartmann and Martin Berz",
       TITLE = "Principles behind {GIOS} and {COSY}",
       JOURNAL = "AIP Conference Proceedings",
       VOLUME = "177",
       NUMBER = "74",
       YEAR = "1988",
       REFERRED = "[Berz1996CIa].",
       ad_tools = "COSY INFINITY"
}