@book { PraxisleitfadenKleintierassistenz,
    title = "Praxisleitfaden Kleintierassistenz",
    author = "Dr. Thomas {Steidl} and Dr. Thomas {Göbel}",
    year = "2017",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403991"
}