@misc{Ehlers2011,
  author    = {Theodor Ehlers},
  title     = {Zur G{\"u}ltigkeit der Rosenzweig Picture-Frustration Study : Form f{\"u}r Kinder},
  institution = {Department f{\"u}r Inklusionsp{\"a}dagogik},
  type      = {postprint},
  year        = {2011},
}