@book { TopographicalNamesandProtectionofLinguisticMinorities,
    title = "Topographical Names and Protection of Linguistic Minorities",
    author = "Giuseppe de {Vergottini} and Valeria {Piergigli}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107793"
}