@article{KoehnkeKlewitz1996,
  author    = {K{\"o}hnke, Angelika and Klewitz, Gudrun},
  title     = {F{\"o}rdern im Mathematikunterricht der Grundschule, Teil 1},
  year      = {1996},
  language  = {de}
}
@article{KoehnkeKlewitz1996,
  author    = {K{\"o}hnke, Angelika and Klewitz, Gudrun},
  title     = {F{\"o}rdern im Mathematikunterricht der Grundschule, Teil 3},
  year      = {1996},
  language  = {de}
}
@article{KoehnkeKlewitz1996,
  author    = {K{\"o}hnke, Angelika and Klewitz, Gudrun},
  title     = {F{\"o}rdern im Mathematikunterricht der Grundschule, Teil 2},
  year      = {1996},
  language  = {de}
}
@article{KoehnkeKlewitz1997,
  author    = {K{\"o}hnke, Angelika and Klewitz, Gudrun},
  title     = {F{\"o}rdern im Mathematikunterricht der Grundschule, Teil 4},
  year      = {1997},
  language  = {de}
}
@article{Koehnke1998,
  author    = {K{\"o}hnke, Angelika},
  title     = {Unterrichtsst{\"o}rungen in den Klassen 5 und 6},
  issn      = {0945-6643},
  year      = {1998},
  language  = {de}
}
@article{Koehnke1998,
  author    = {K{\"o}hnke, Angelika},
  title     = {Zum Grundschulgutachten},
  issn      = {0945-6643},
  year      = {1998},
  language  = {de}
}