@book { ErnhrungbeiRheuma,
    title = "Ernährung bei Rheuma",
    author = "Lena {Böhm} and Marcus {Köller}",
    year = "2022",
    publisher = "facultas / maudrich",
    address = "Wien, Österreich",
    url = "https://campus-lizenzen.facultas.at/document/1171353"
}