BibTeX
@MISC{
         Bischof1999AoA,
       author = "Christian H. Bischof",
       title = "Availability of {ADIFOR} Software",
       url = "http://www.mcs.anl.gov/autodiff/ADIFOR",
       key = "Bischof1999AoA",
       referred = "[Bischof2001ACS].",
       year = "1999"
}