@book { EinRucksackvollerUrlaubsglck,
    title = "Ein Rucksack voller Urlaubsglück",
    author = "Renate {Dopatka}",
    year = "2017",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/404116"
}