@book { DerSituationsansatzimHortderKindertagessttte, title = "Der Situationsansatz im Hort der Kindertagesstätte", author = "Ralf-Peter {Nungäßer}", year = "2007", publisher = "Diplom.de", address = "Hamburg, Deutschland", url = "https://m.diplom.de/document/225384" }