@book {9783402161906, title = "Musik und Gesang Ebook PDF", author = "Quasten, Johannes", isbn = "9783402161906", year = "1973", edition = "2", url = "http://www.content-select.com/index.php?id=bib_view&ean=9783402161906", url = "https://content-select.com/de/portal/media/view/604216fb-6ad8-4732-b049-5a28b0dd2d03", publisher = "Aschendorff Verlag", language = "ger", }