@book { PrfungsvorbereitunginderPflege,
    title = "Prüfungsvorbereitung in der Pflege",
    author = "Jacqueline {Stiehl}",
    year = "2022",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1224113"
}