@article{aunifiedprimaldualactivesetalgorithm,
  title = {A Unified Primal Dual Active Set Algorithm for Nonconvex Sparse Recovery},
  author = {Jian Huang and Yuling Jiao and Bangti Jin and Jin Liu and Xiliang Lu and Can Yang},
  year = {2013},
  eprint = {1310.1147},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1310.1147v5},
}