@book { VittorioAlfieriSolitudinePotereLibert,
    title = "Vittorio Alfieri: Solitudine – Potere – Libertà",
    author = "Roberto {Ubbidiente}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100108"
}