@article{GrassmannKlunterMirwaldetal.1995,
  author    = {Grassmann, Marianne and Klunter, Martina and Mirwald, Elke and Veith, Ute},
  title     = {Arithmetische Kompetenzen von Schulanf{\"a}ngern-Schlußfolgerungen f{\"u}r die Gestaltung des Anfangsunterrichts},
  year      = {1995},
  language  = {de}
}
@article{GrassmannKlunterMirwaldetal.1995,
  author    = {Grassmann, Marianne and Klunter, Martina and Mirwald, Elke and Veith, Ute},
  title     = {Was k{\"o}nnen Schulanf{\"a}nger bereits vor ihrer ersten Mathematikstunde?},
  year      = {1995},
  language  = {de}
}