@article{JMLR:v7:maurer06a,
  author  = {Andreas Maurer},
  title   = {Bounds for Linear Multi-Task Learning},
  journal = {Journal of Machine Learning Research},
  year    = {2006},
  volume  = {7},
  number  = {5},
  pages   = {117--139},
  url     = {http://jmlr.org/papers/v7/maurer06a.html}
}