@book { DerBillyEffekt,
    title = "Der Billy-Effekt",
    subtitle = "Roman: Von der Autorin des Weltbestsellers »Der Club der Teufelinnen«",
    author = "Olivia {Goldsmith} and Antje {Althans}",
    year = "2021",
    publisher = "dotbooks Verlag",
    address = "München, Germany",
    url = "https://www.dotbooks.de/document/995065"
}