@inproceedings{nonparametricregressionandclassification,
  title = {Nonparametric regression and classification with joint sparsity constraints},
  author = {Han Liu and Larry Wasserman and John D. Lafferty},
  year = {2008},
  booktitle = {NeurIPS 2008 12},
  url = {http://papers.nips.cc/paper/3616-nonparametric-regression-and-classification-with-joint-sparsity-constraints},
}