@article{JMLR:v10:liu09a,
  author  = {Han Liu and John Lafferty and Larry Wasserman},
  title   = {The Nonparanormal: Semiparametric Estimation of High Dimensional Undirected Graphs},
  journal = {Journal of Machine Learning Research},
  year    = {2009},
  volume  = {10},
  number  = {80},
  pages   = {2295--2328},
  url     = {http://jmlr.org/papers/v10/liu09a.html}
}