@article{Giest2012,
  author    = {Giest, Hartmut},
  title     = {Lernen und Lehren im Sachunterricht : zum Verh{\"a}ltnis von Konstruktion und Instruktion},
  isbn      = {978-3-7851-1851-3},
  year      = {2012},
  language  = {de}
}
@article{HeranDoerrGiestArchie2012,
  author    = {Heran-D{\"o}rr, Eva and Giest, Hartmut and Archie, Carmen},
  title     = {Editorial},
  isbn      = {978-3-7851-1851-3},
  year      = {2012},
  language  = {de}
}
@article{AlbertsGiest2012,
  author    = {Alberts, Sonja and Giest, Hartmut},
  title     = {Lernen an Eperimentierstationen im Science Center},
  isbn      = {978-3-7851-1851-3},
  year      = {2012},
  language  = {de}
}