@book { TheAdvancedLearnerVariety,
    title = "The Advanced Learner Variety",
    author = "Emmannuelle {Labeau} and Florence {Myles}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    doi = "10.3726/978-3-0353-0172-4",
    url = "https://www.peterlang.com/document/1043703"
}