@incollection {NIPS2003_LT10,
  author = " David Donoho and  Victoria Stodden",
  title = " When Does Non-Negative Matrix Factorization Give a Correct Decomposition into Parts?",
  booktitle = "Advances in Neural Information Processing Systems 16",
  editor = "Sebastian Thrun and Lawrence Saul and Bernhard {Sch\"{o}lkopf}",
  publisher = "MIT Press",
  address = "Cambridge, MA",
  year = "2004",
  keywords = "image databases, non-negative matrix factorization",
  }