@article{cg2011sc,
  title = {Shape Classification and Normal Estimation for Non-uniformly Sampled, Noisy Point Data},
  author = {Cindy Grimm and William Smart},
  journal = {Elsevier Computers and Graphics},
  volume = {35 },
  number = {4},
  pages = {904--915},
  publisher = {Elsevier},
  note = {Calculating normals, the equivalent of the one-ring, and a local estimate of the shape for point clouds. Source code at Sourceforge, project meshprocessing},
  month = {March},
  year = {2011}
}