@article{Fischer2012,
  author    = {Martin H. Fischer},
  title     = {A hierarchical view of grounded, embodied, and situated numerical cognition},
  journal   = {Cognitive processing : international quarterly of cognitive science},
  volume    = {13},
  pages     = {S161 -- S164},
  doi       = {10.1007/s10339-012-0477-5},
  year      = {2012},
}