@book { DMartinusLutherunddieMusica,
    title = "D. Martinus Luther und die Musica",
    author = "David {Jäggi}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783656011309",
    url = "https://www.hausarbeiten.de/document/178730"
}