@inproceedings{Prautzsch1998Improved,
  Author = {Hartmut Prautzsch and Georg Umlauf},
  Title = {Improved triangular subdivision schemes},
  Booktitle = {},
  Year = {1998},
  Note = {In: F.-E. Wolter and N. M. Patrikalakis (eds.), Proceedings of the CGI 1998, Hannover, 1998: 626–632}
}