@book { HeartofRockBettisEntscheidung,
    title = "Heart of Rock: Bettis Entscheidung",
    author = "Lilith {van Doorn}",
    year = "2018",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1040924"
}