@article{JMLR:v13:kakade12a,
  author  = {Sham M. Kakade and Shai Shalev-Shwartz and Ambuj Tewari},
  title   = {Regularization Techniques for Learning with Matrices},
  journal = {Journal of Machine Learning Research},
  year    = {2012},
  volume  = {13},
  number  = {59},
  pages   = {1865--1890},
  url     = {http://jmlr.org/papers/v13/kakade12a.html}
}