@INPROCEEDINGS{vanKreveld2013,
  author = {van Kreveld, Marc and van Lankveld, Thijs and Veltkamp, Remco C.},
  title = {Watertight Scenes from Urban LiDAR and Planar Surfaces},
  booktitle = {Symposium on Geometry Processing 2013},
  year = {2013},
  number = {12},
  pages = {--}
}

@TECHREPORT{vanKreveld2013a,
  author = {van Kreveld, Marc and van Lankveld, Thijs and Veltkamp, Remco C.},
  title = {Watertight Scenes from Urban LiDAR and Planar Surfaces},
  institution = {Utrecht University, Department of Information and Computing Sciences},
  year = {2013},
  number = {UU-CS-2013-007}
}