@article{screeningtestsforlassoproblems,
  title = {Screening Tests for Lasso Problems},
  author = {Zhen James Xiang and Yun Wang and Peter J. Ramadge},
  year = {2014},
  eprint = {1405.4897},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1405.4897v2},
}