@book { LanguagesatWarExternalLanguageSpreadPoliciesinLusophoneAfrica,
    title = "Languages at War: External Language Spread Policies in Lusophone Africa",
    author = "Carla {Figueira}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03054-9",
    url = "https://www.peterlang.com/document/1047795"
}