@book { Anorexianervosa,
    title = "Anorexia nervosa",
    author = "Bettina {Emetz}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832406509",
    url = "https://m.diplom.de/document/216580"
}