@misc{Mohs1997CAGDApplets,
  Author = {Torsten Mohs and Raphael Straub and Claudia Bangert and Hartmut Prautzsch},
  Title = {CAGD-Applets—an interactive tutorial on geometric modelling},
  Year = {1997}
  Url = {http://i33www.ibds.uni-karlsruhe.de/applets/}
  Urldate = {1997}
}