@book { ApproachestoMiddleEnglish,
    title = "Approaches to Middle English",
    author = "Juan Camilo {Conde-Silvestre} and Javier {Calle-Martín}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04902-2",
    url = "https://www.peterlang.com/document/1048766"
}