@book { 100FragenzurErnhrungkrankerMenschen,
    title = "100 Fragen zur Ernährung kranker Menschen",
    author = "Elvira {Martin}",
    year = "2010",
    publisher = "Schlütersche Verlagsgesellschaft mbH & Co. KG",
    address = ", Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403684"
}