@book { Testoeritmi,
    title = "Testo e ritmi",
    author = "Elmar {Schafroth} and Maria {Selig}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01588-1",
    url = "https://www.peterlang.com/document/1045653"
}