@book { UrbanandRuralChina,
    title = "Urban and Rural China",
    author = "Qiren {Zhou}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/b18629",
    url = "https://www.peterlang.com/document/1224052"
}