@article{reversiblemcmconmarkovequivalenceclasses,
  title = {Reversible MCMC on Markov equivalence classes of sparse directed acyclic graphs},
  author = {Yangbo He and Jinzhu Jia and Bin Yu},
  year = {2012},
  eprint = {1209.5860},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1209.5860v3},
}