@book { ErnhrungbeiReizdarmsyndrom,
    title = "Ernährung bei Reizdarmsyndrom",
    author = "Ilse {Weiß} and Christoph {Gasche}",
    year = "2018",
    publisher = "facultas / maudrich",
    address = "Wien, Österreich",
    url = "https://campus-lizenzen.facultas.at/document/520717"
}