@book { FamilienurlaubKinderalsEntscheidungstrger,
    title = "Familienurlaub - Kinder als Entscheidungsträger?",
    author = "Verena {Simon}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836612258",
    url = "https://m.diplom.de/document/225736"
}