@book { ErnhrungbeiErkrankungderBauchspeicheldrse,
    title = "Ernährung bei Erkrankung der Bauchspeicheldrüse",
    author = "Klaus {Nigl} and Johanna {Picker}",
    year = "2021",
    publisher = "facultas / maudrich",
    address = "Wien, Österreich",
    url = "https://campus-lizenzen.facultas.at/document/1009665"
}