@book { AdverbialClausesinMandarinChinese,
    title = "Adverbial Clauses in Mandarin Chinese",
    author = "May Lai-Ying {Wong}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    doi = "10.3726/978-3-0351-0497-4",
    url = "https://www.peterlang.com/document/1052781"
}