@book { KindheitimWandel,
    title = "Kindheit im Wandel",
    author = "Joan-Ivonne {Bake}",
    year = "2003",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638235242",
    url = "https://www.hausarbeiten.de/document/19383"
}