@inproceedings{fastsemanticsegmentationof3dpointclouds,
  title = {Fast semantic segmentation of 3d point clouds with strongly varying density},
  author = {Timo Hackel and Jan D. Wegner and Konrad Schindler},
  year = {2016},
  booktitle = {ISPRS annals of the photogrammetry, remote sensing and spatial information sciences 2016 3},
  url = {https://www.ethz.ch/content/dam/ethz/special-interest/baug/igp/photogrammetry-remote-sensing-dam/documents/pdf/timo-jan-isprs2016.pdf},
}