@book { IgelatierivenetiinGermania,
    title = "I gelatieri veneti in Germania",
    subtitle = "Un’indagine sociolinguistica",
    author = "Laura {Campanale}",
    year = "2006",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100878"
}