@article{JMLR:v18:15-154,
  author  = {Wesley Cowan and Junya Honda and Michael N. Katehakis},
  title   = {Normal Bandits of Unknown Means and Variances},
  journal = {Journal of Machine Learning Research},
  year    = {2018},
  volume  = {18},
  number  = {154},
  pages   = {1--28},
  url     = {http://jmlr.org/papers/v18/15-154.html}
}