@article{learninglaplacianmatrixinsmoothgraph,
  title = {Learning Laplacian Matrix in Smooth Graph Signal Representations},
  author = {Xiaowen Dong and Dorina Thanou and Pascal Frossard and Pierre Vandergheynst},
  year = {2014},
  eprint = {1406.7842},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1406.7842v3},
}