@book { ProgressiveRock,
    title = "Progressive Rock",
    subtitle = "Musik zwischen Kunstanspruch und Kommerz",
    author = "Andreas {Hinners}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832484125",
    url = "https://m.diplom.de/document/223600"
}