@book { InfektionskrankheitenderKatze,
    title = "Infektionskrankheiten der Katze",
    author = "Katrin {Hartmann} and Jutta {Hein}",
    year = "2010",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403524"
}