@article{DumontNeumannNagyetal.2013,
  author    = {Hanna Dumont and Marko Neumann and Gabriel Nagy and Michael Becker and Norman Rose and Ulrich Trautwein},
  title     = {Class composition Effects in non-academic lower secondary school tracks in the state of Baden-W{\"u}rttemberg},
  journal   = {Psychologie in Erziehung und Unterricht : Zeitschrift f{\"u}r Forschung und Praxis},
  volume    = {60},
  number    = {3},
  pages     = {198 -- 213},
  doi       = {10.2378/peu2013.art16d},
  year      = {2013},
}