@book { AnaltherapieinderSexKurklinik,
    title = "Analtherapie in der Sex-Kurklinik",
    author = "Elvira {Puddlich}",
    year = "2022",
    publisher = "roter mund verlag",
    address = "Mannheim, Deutschland",
    url = "https://rotermundverlag.de/document/1188371"
}