@article{JMLR:v6:drukh05a,
  author  = {Evgeny Drukh and Yishay Mansour},
  title   = {Concentration Bounds for Unigram Language Models},
  journal = {Journal of Machine Learning Research},
  year    = {2005},
  volume  = {6},
  number  = {42},
  pages   = {1231--1264},
  url     = {http://jmlr.org/papers/v6/drukh05a.html}
}