Bei Song gu wen yun dong de xing cheng

Quan shu tong guo dui wen xue xian xiang, yun dong li nian, wen ren si xiang de kao cha yu shi dai bei jing, xue shu huan jing, di yu wen hua deng duo zhong li shi yin su de yan jiu, yi ji zai bu tong cheng du shang can yu le zhe yi guo cheng de ge zhong bu tong pai bie de ren qun de cuo zong guan xi deng deng.