@book { Bitte3xtglichlachen,
    title = "Bitte 3x täglich lachen",
    author = "Susann {Winkler}",
    year = "2014",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403857"
}