Title: 艰难的探索
Description: Ben shu shi zuo zhe kao cha le Xiong, Nan liang guo xin jiu ti zhi jiao ti guo cheng zhong de mo ca, mao dun, fa zhan qu shi he jie jue wen ti fang xiang zhi hou, jie he wo guo shi ji xie chu de bao gao.
Subjects: Economic conditions, Jing ji ti zhi gai ge, Diao cha bao gao, Jing ji fa
Places: Hungary, Yugoslavia, xiong ya li, nan si la fu
Time periods: 1945-, 1945-1992