@book { DasgroeVollwertBackbuch,
    title = "Das große Vollwert-Backbuch",
    author = "Josef {Rönner}",
    year = "2010",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403757"
}