@article{JMLR:v9:he08a,
  author  = {Yang-Bo He and Zhi Geng},
  title   = {Active Learning of Causal Networks with Intervention Experiments and Optimal Designs},
  journal = {Journal of Machine Learning Research},
  year    = {2008},
  volume  = {9},
  number  = {84},
  pages   = {2523--2547},
  url     = {http://jmlr.org/papers/v9/he08a.html}
}