@article{optimalvariableselectioninmultigroup,
  title = {Optimal variable selection in multi-group sparse discriminant analysis},
  author = {Irina Gaynanova and Mladen Kolar},
  year = {2014},
  eprint = {1411.6311},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1411.6311v1},
}