@article{JMLR:v17:15-215,
  author  = {Andr{{\'e}} R. Gon{\c{c}}alves and Fernando J. Von Zuben and Arindam Banerjee},
  title   = {Multi-task Sparse Structure Learning with Gaussian Copula Models},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {33},
  pages   = {1--30},
  url     = {http://jmlr.org/papers/v17/15-215.html}
}