@book { ZurdeskriptivenGrammatikdesKantonesischen,
    title = "Zur deskriptiven Grammatik des Kantonesischen",
    author = " {Liuming Li}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1091781"
}