@book { MoralentwicklungundBindung,
    title = "Moralentwicklung und Bindung",
    author = "Katharina {Stecher}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832416577",
    url = "https://m.diplom.de/document/217534"
}