@article{iglesias-et-al_ks2009,
  author       = {Iglesias, Ana and Martínez, Paloma and Aler, Ricardo and Fernández,
    Fernando},
  journal      = {Knowledge-Based Systems},
  number       = 4,
  pages        = {266 -- 270},
  title        = {Reinforcement learning of pedagogical policies in adaptive and
    intelligent educational systems},
  volume       = 22,
  year         = 2009,
}