BibTeX
@TECHREPORT{
         Berz2001CIV,
       author = "Martin Berz and Jens Hoefkens and Kyoko Makino",
       title = "{COSY INFINITY} {V}ersion 8.1 --- Programming Manual",
       institution = "Department of Physics and Astronomy, Michigan State University",
       address = "East Lansing, {MI} 48824",
       number = "MSUHEP--20703",
       year = "2001",
       url = "\url{http://cosy.pa.msu.edu}",
       ad_tools = "COSY INFINITY"
}