@book { MultilingualismandEnglish,
    title = "Multilingualism and English",
    author = "Agnieszka {Stepkowska}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02291-9",
    url = "https://www.peterlang.com/document/1047341"
}