@book { DieKaufuntersuchungdesPferdes,
    title = "Die Kaufuntersuchung des Pferdes",
    author = "Jürgen {Althaus} and Hermann Josef {Genn} and Oliver {Harps-Hansen} and Sabine {Warnebier}",
    year = "2011",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403571"
}