@article{OudeyerKaplan2007,
  author    = {Pierre-Yves Oudeyer and Frederic Kaplan},
  title     = {What is intrinsic motivation? : a typology of computational approaches},
  journal   = {Frontiers in neurorobotics},
  volume    = {1},
  number    = {Art. 6},
  pages     = {1 -- 14},
  doi       = {10.3389/neuro.12.006.2007},
  year      = {2007},
}