@book { MusikinderMittelalterSzene,
    title = "Musik in der Mittelalter-Szene",
    author = "Iwen {Schmees}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836611893",
    url = "https://m.diplom.de/document/225720"
}