@book { ArrigoBoitosOperNerone,
    title = "Arrigo Boitos Oper ‘Nerone’",
    subtitle = "Das vergessene Meisterwerk",
    author = "Sabrina {Cherubini}",
    year = "2007",
    publisher = "Meidenbauer",
    address = ", Germany",
    url = "https://www.peterlang.com/document/1102238"
}