@book { 111RezeptegegenDiabetes,
    title = "111 Rezepte gegen Diabetes",
    author = "Doris {Fritzsche}",
    year = "2021",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/403116"
}