@article{713268,
      author = {Arnold, Eckhart.},
      url = {http://library.usi.edu/record/713268},
      title = {Explaining altruism a simulation-based approach and its  limits / [electronic resource] :},
      publisher = {Ontos Verlag,},
      recid = {713268},
      pages = {310 p. :},
      address = {Frankfurt :},
      year = {2008},
}