@article{Burrmann2005,
  author    = {Ulrike Burrmann},
  title     = {Empirische Studie zum Interventionsprogramm},
  journal   = {LLF-Berichte / Universit{\"a}t Potsdam, Zentrum f{\"u}r Lehrerbildung},
  series    = {Cognitive Acceleration through science education (Case)},
  volume    = {18},
  year      = {2005},
}