@book { DieFreundinnen,
    title = "Die Freundinnen",
    subtitle = "Der fesselnde Psychothriller voller tödlicher Geheimnisse",
    author = "Anita {Waller} and Andrea {Kienitz}",
    year = "2026",
    publisher = "dp DIGITAL PUBLISHERS GmbH",
    address = "Stuttgart, Deutschland",
    url = "https://shop.digitalpublishers.de/document/1781677"
}