@article{JMLR:v15:gillis14a,
  author  = {Nicolas Gillis and Robert Luce},
  title   = {Robust Near-Separable Nonnegative Matrix Factorization Using Linear Optimization},
  journal = {Journal of Machine Learning Research},
  year    = {2014},
  volume  = {15},
  number  = {36},
  pages   = {1249--1280},
  url     = {http://jmlr.org/papers/v15/gillis14a.html}
}