@article{JMLR:v13:hauser12a,
  author  = {Alain Hauser and Peter B{{\"u}}hlmann},
  title   = {Characterization and Greedy Learning of Interventional Markov Equivalence Classes of Directed Acyclic Graphs},
  journal = {Journal of Machine Learning Research},
  year    = {2012},
  volume  = {13},
  number  = {79},
  pages   = {2409--2464},
  url     = {http://jmlr.org/papers/v13/hauser12a.html}
}