@book { ffnungderMachtstrukturendurchReferendeninItalien,
    title = "Öffnung der Machtstrukturen durch Referenden in Italien",
    author = "Anna {Capretti}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1092051"
}