@article{WittkowskeGiest2007,
  author    = {Wittkowske, Steffen and Giest, Hartmut},
  title     = {Die Sachen mitgestalten},
  isbn      = {978-3-7815-1508-6},
  year      = {2007},
  language  = {de}
}
@article{GiestWittkowske2007,
  author    = {Giest, Hartmut and Wittkowske, Steffen},
  title     = {Heimatkunde in der DDR},
  isbn      = {978-3-7815-1508-6},
  year      = {2007},
  language  = {de}
}
@article{Giest2007,
  author    = {Giest, Hartmut},
  title     = {Kognitive Entwicklung},
  isbn      = {978-3-7815-1508-6},
  year      = {2007},
  language  = {de}
}
@article{Giest2007,
  author    = {Giest, Hartmut},
  title     = {Methodisches Erschließen},
  isbn      = {978-3-7815-1508-6},
  year      = {2007},
  language  = {de}
}
@article{Giest2007,
  author    = {Giest, Hartmut},
  title     = {Didaktische Analyse als Mittel zur Kompetenzf{\"o}rderung im Unterricht},
  isbn      = {978- 3-7815-1532-1},
  year      = {2007},
  language  = {de}
}
@article{GiestKoehlerSelbitz2007,
  author    = {Giest, Hartmut and Koehler, Egon and Selbitz, Cl.},
  title     = {Lernumwelt Technik im {\"o}ffentlichen Raum},
  year      = {2007},
  language  = {de}
}
@article{Giest2007,
  author    = {Giest, Hartmut},
  title     = {Lernumwelten gestalten : Einf{\"u}hrung in das Themenheft},
  year      = {2007},
  language  = {de}
}
@book{Giest2007,
  author    = {Giest, Hartmut},
  title     = {Zu aktuellen Entwicklungen des Sachunterrichts},
  year      = {2007},
  language  = {de}
}
@article{HintzeGiest2007,
  author    = {Hintze, Ksenia and Giest, Hartmut},
  title     = {Valeologie},
  year      = {2007},
  language  = {de}
}
@article{GiestHintze2007,
  author    = {Giest, Hartmut and Hintze, Ksenia},
  title     = {F{\"u}r einen aktiven Gesundheitsbegriff},
  year      = {2007},
  language  = {de}
}