@book { AristoxenosundPythagoras,
    title = "Aristoxenos und Pythagoras",
    author = "Walter {Bühler}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b11883",
    url = "https://www.peterlang.com/document/1055546"
}