@book { ErnhrungsratgeberGastritis,
    title = "Ernährungsratgeber Gastritis",
    author = "Sven {Bach} and Martina {Amon}",
    year = "2024",
    publisher = "humboldt",
    address = "Hannover, Deutschland",
    url = "https://schluetersche.openpublishing.com/document/1108895"
}