@article{improvingapproximaterpcawithaksparsity,
  title = {Improving approximate RPCA with a k-sparsity prior},
  author = {Maximilian Karl and Christian Osendorfer},
  year = {2014},
  eprint = {1412.8291},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1412.8291v1},
}