@article{abayesianapproachtolearningcausal,
  title = {A Bayesian Approach to Learning Causal Networks},
  author = {David Heckerman},
  year = {2013},
  eprint = {1302.4958},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1302.4958v2},
}