@book { DerZaubereinerInselnacht,
    title = "Der Zauber einer Inselnacht",
    subtitle = "Ein Nordsee-Roman",
    author = "Christine  {Lehmann}",
    year = "2021",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://www.dotbooks.de/document/280265"
}