Research on formation and evolution of industrial clusters in the northeast China 并列题名：Research on formation and evolution of industrial clusters in the northeast China Network dynamics and evolution of industrial clusters in China 并列题名：Network dynamics and evolution of industrial clusters in China Research on the evolution of industrial cluster in science and technology praks Eu regional policy and its implication to the revitaliztion of old industrial base in the northeast of China Research on industrialization of forest resources in modern Northeast China 并列题名：Research on the evolution of industrial cluster in science and technology praks research on farmers' acculturation of centralized residence in Midwest China 并列题名：Eu regional policy and its implication to the revitaliztion of old industrial base in the northeast of China