@article{primaldualalgorithmsfornonnegative,
  title = {Primal-Dual Algorithms for Non-negative Matrix Factorization with the Kullback-Leibler Divergence},
  author = {Felipe Yanez and Francis Bach},
  year = {2014},
  eprint = {1412.1788},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1412.1788v1},
}