@book { 15MinutenGerichtefrDiabetiker,
    title = "15-Minuten-Gerichte für Diabetiker",
    author = "Elisabeth {Lange}",
    year = "2012",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403788"
}