@book { AbfallentsorgungingewerblichenKchen,
    title = "Abfallentsorgung in gewerblichen Küchen",
    author = "Ellen {Schäfer}",
    year = "2000",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832421298",
    url = "https://m.diplom.de/document/217961"
}