@book { SchinkenselbermachennichtsleichteralsdasEbookEdition,
    title = "Schinken selber machen, nichts leichter als das! Ebook-Edition",
    author = "Holger {Frech}",
    year = "2019",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1038015"
}