@book { Lesdisciplinesdanslenseignementbilingue,
    title = "Les disciplines dans l’enseignement bilingue",
    author = "Gabriela {Steffen}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02663-4",
    url = "https://www.peterlang.com/document/1047179"
}