@article{JMLR:v14:boehmer13a,
  author  = {Wendelin B{{\"o}}hmer and Steffen Gr{{\"u}}new{{\"a}}lder and Yun Shen and Marek Musial and Klaus Obermayer},
  title   = {Construction of Approximation Spaces for Reinforcement Learning},
  journal = {Journal of Machine Learning Research},
  year    = {2013},
  volume  = {14},
  number  = {63},
  pages   = {2067--2118},
  url     = {http://jmlr.org/papers/v14/boehmer13a.html}
}