@article{anoptimalhierarchicalclusteringapproach,
  title = {An optimal hierarchical clustering approach to segmentation of mobile LiDAR point clouds},
  author = {Sheng Xu and Ruisheng Wang and Han Zheng},
  year = {2017},
  eprint = {1703.02150},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1703.02150v2},
}