@book { TheStructureofChaucersAmbiguity,
    title = "The Structure of Chaucer’s Ambiguity",
    author = "Yoshiyuki {Nakao}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02508-8",
    url = "https://www.peterlang.com/document/1046105"
}