@book { StudiesinBilingualEducation,
    title = "Studies in Bilingual Education",
    author = "Daniel {Madrid Fernandez} and Stephen {Hughes}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0351-0237-6",
    url = "https://www.peterlang.com/document/1052222"
}