@book { SherlockHolmesNeueFlle09SherlockHolmesundseinschwierigsterFall,
    title = "Sherlock Holmes - Neue Fälle 09: Sherlock Holmes und sein schwierigster Fall",
    author = "Gary {Lovisi}",
    year = "2020",
    publisher = "Blitz-Verlag",
    address = ", Deutschland",
    url = "https://tolino.openpublishing.com/document/1012830"
}