@article{JMLR:v9:chu08a,
  author  = {Tianjiao Chu and Clark Glymour},
  title   = {Search for Additive Nonlinear Time Series Causal Models},
  journal = {Journal of Machine Learning Research},
  year    = {2008},
  volume  = {9},
  number  = {32},
  pages   = {967--991},
  url     = {http://jmlr.org/papers/v9/chu08a.html}
}