@book { HarterSexumdasLebenzuspren,
    title = "Harter Sex, um das Leben zu spüren",
    author = "Lena {Valles}",
    year = "2025",
    publisher = "roter mund verlag",
    address = "Mannheim, Deutschland",
    url = "https://rotermundverlag.de/document/1667390"
}