@article{JMLR:v8:mahadevan07a,
  author  = {Sridhar Mahadevan and Mauro Maggioni},
  title   = {Proto-value Functions: A Laplacian Framework for Learning Representation and Control in Markov Decision Processes},
  journal = {Journal of Machine Learning Research},
  year    = {2007},
  volume  = {8},
  number  = {74},
  pages   = {2169--2231},
  url     = {http://jmlr.org/papers/v8/mahadevan07a.html}
}