@book { MetalinguisticOperatorswithReferencetoFrench,
    title = "Metalinguistic Operators with Reference to French",
    author = "Thanh {Nyan}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Oxford, United Kingdom",
    url = "https://www.peterlang.com/document/1087568"
}