@article{JMLR:v14:he13a,
  author  = {Yuejia He and Yiyuan She and Dapeng Wu},
  title   = {Stationary-Sparse Causality Network Learning},
  journal = {Journal of Machine Learning Research},
  year    = {2013},
  volume  = {14},
  number  = {94},
  pages   = {3073--3104},
  url     = {http://jmlr.org/papers/v14/he13a.html}
}