@book { DasSystemderchinesischenBasiskrankenversicherung,
    title = "Das System der chinesischen Basiskrankenversicherung",
    author = " {Weihua Wang}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098150"
}