@phdthesis{Leisner2005,
  author      = {Antje Leisner},
  title       = {Entwicklung von Modellkompetenz im Physikunterricht},
  type        = {doctoralthesis},
  pages       = {vii, 264, XLII S. : Ill., graph. Darst.},
  year        = {2005},
}