@article{asimpleexpressionformillsratioofthe,
  title = {A Simple Expression for Mill's Ratio of the Student's $t$-Distribution},
  author = {Francesco Orabona},
  year = {2015},
  eprint = {1502.01632},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1502.01632v1},
}