@book { LinguaFrancaCommunication,
    title = "Lingua Franca Communication",
    author = "Karlfried {Knapp} and Christiane {Meierkord}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04730-1",
    url = "https://www.peterlang.com/document/1051874"
}