@book { TodundTrauerinderKleintierpraxis,
    title = "Tod und Trauer in der Kleintierpraxis",
    author = "Svenja {Holle} and Emanuel {Holle}",
    year = "2019",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/491942"
}