@article{JMLR:v13:anandkumar12a,
  author  = {Animashree Anandkumar and Vincent Y.F. Tan and Furong Huang and Alan S. Willsky},
  title   = {High-Dimensional Gaussian Graphical Model Selection: Walk Summability and Local Separation Criterion},
  journal = {Journal of Machine Learning Research},
  year    = {2012},
  volume  = {13},
  number  = {76},
  pages   = {2293--2337},
  url     = {http://jmlr.org/papers/v13/anandkumar12a.html}
}