@article{robustpcavianonconvexrankapproximation,
  title = {Robust PCA via Nonconvex Rank Approximation},
  author = {Zhao Kang and Chong Peng and Qiang Cheng},
  year = {2015},
  eprint = {1511.05261},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1511.05261v1},
}