@article{FrohneGueldner1991,
  author    = {Frohne, Irene and G{\"u}ldner, Karin},
  title     = {Klasse 3b erarbeitet einen Touristenplan},
  year      = {1991},
  language  = {de}
}
@book{OPUS4-29327,
  title     = {Grundschulunterricht},
  editor    = {Giest, Hartmut and Kleinschmidt-Br{\"a}utigam, M. and Kruse, N. and Rasch, R. and Wittkowske, Steffen},
  publisher = {Oldenbourg},
  address   = {M{\"u}nchen},
  year      = {1992},
  language  = {de}
}
@article{Giest1992,
  author    = {Giest, Hartmut},
  title     = {Zum Problem der Lehrstrategien},
  year      = {1992},
  language  = {de}
}
@article{HeusingerMoeller1992,
  author    = {Heusinger, Renate and M{\"o}ller, Rainer},
  title     = {Vom Institut f{\"u}r Lehrerbildung zur Universit{\"a}t},
  year      = {1992},
  language  = {de}
}
@phdthesis{Kleszak1992,
  author    = {Kleszak, Brigitte},
  title     = {Theoretische Grundlegungen f{\"u}r ein Rahmencurriculum zum Technikunterricht in der Grundschule},
  pages     = {Getr. Z{\"a}hlung : Ill.},
  year      = {1992},
  language  = {de}
}
@phdthesis{FelgerPaersch1993,
  author    = {Felger-P{\"a}rsch, Anneliese},
  title     = {Untersuchungen zum Stand der Entwicklung von Selbstkonzepten bei Sch{\"u}lern der Primarstufe (Klasse 4) - eine Erkundungsstudie},
  pages     = {174, 47 Bl. : graph. Darst.},
  year      = {1993},
  language  = {de}
}
@article{Heusinger1993,
  author    = {Heusinger, Renate},
  title     = {Disziplin, Stille : Erfahren der eigenen K{\"o}rperlichkeit und Sinnlichkeit},
  year      = {1993},
  language  = {de}
}
@article{Frohne1993,
  author    = {Frohne, Irene},
  title     = {Sachunterricht in der Grundschule : Grundlegende Bildung im Sachunterricht},
  year      = {1993},
  language  = {de}
}
@article{Frohne1993,
  author    = {Frohne, Irene},
  title     = {Sachunterricht planen},
  year      = {1993},
  language  = {de}
}
@article{Veith1993,
  author    = {Veith, Ute},
  title     = {Gr{\"o}ßen erfahren und erleben, Teil 1},
  year      = {1993},
  language  = {de}
}