@article{PitzerEsserSchmidtetal.2009,
  author    = {Martina Pitzer and G{\"u}nter Esser and Martin H. Schmidt and Manfred Laucht},
  title     = {Temperamental predictors of externalizing problems among boys and girls : a longitudinal study in a high-risk sample from ages 3 months to 15 years},
  doi       = {10.1007/s00406-009-0009-1},
  url       = {http://www.springerlink.com/content/101492},
  year      = {2009},
}