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Wei Kai Chinese Historical Geography Theory Series rivers Hanshu Geography Water is injected Historical Geography
04-22
Li Xiaojie Water is injected Huang Xuechao Fudan University Yang Xiaoyang Li Daoyuan
Li Xiaojie Huang Xuechao Water is injected Li Daoyuan Yang Xiaoyang Yang Changyu
Pingcheng Northern wei dynasty Datong Water is injected
01-17
Northern wei dynasty Datong City Pingcheng Water is injected Li Daoyuan
12-31
Yang Shoujing Water is injected Bears will be virtuous calligraphy Water is injected Japan
12-12