@book { KinderbrauchenRituale,
    title = "Kinder brauchen Rituale",
    author = "Melanie {Gräßer} and Eike {Hovermann}",
    year = "2015",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403331"
}