@book { ErnhrungundHepatitisC,
    title = "Ernährung und Hepatitis C",
    author = "Andrea {Kierey}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832412586",
    url = "https://m.diplom.de/document/217172"
}