@article{nuclearnormpenalizationandoptimalrates,
  title = {Nuclear norm penalization and optimal rates for noisy low rank matrix completion},
  author = {Vladimir Koltchinskii and Alexandre B. Tsybakov and Karim Lounici},
  year = {2010},
  eprint = {1011.6256},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1011.6256v4},
}