@article{MoellerKrahe2009,
  author    = {Ingrid M{\"o}ller and Barbara Krah{\´e}},
  title     = {Exposure to violent video games and aggression in German adolescents : a longitudinal analysis},
  doi       = {10.1002/Ab.20290},
  url       = {http://www3.interscience.wiley.com/cgi-bin/jhome/32356},
  year      = {2009},
}