@article{JMLR:v14:alquier13a,
  author  = {Pierre Alquier and Gérard Biau},
  title   = {Sparse Single-Index Model},
  journal = {Journal of Machine Learning Research},
  year    = {2013},
  volume  = {14},
  number  = {8},
  pages   = {243--280},
  url     = {http://jmlr.org/papers/v14/alquier13a.html}
}