@inproceedings{heunen:silhouettes,
  title = "Accurate silhouettes - do polyhedral models suffice?",
  author = "Chris Heunen",
  year = "2003",
  journal = "GMAG'03, IEEE conference proceedings",
  pages = "69-74",
  doi = "10.1109/GMAG.2003.1219668",
}