@article{JMLR:v9:shafer08a,
  author  = {Glenn Shafer and Vladimir Vovk},
  title   = {A Tutorial on Conformal Prediction},
  journal = {Journal of Machine Learning Research},
  year    = {2008},
  volume  = {9},
  number  = {12},
  pages   = {371--421},
  url     = {http://jmlr.org/papers/v9/shafer08a.html}
}