Research of development patterns of urbanization in small and medium-sized cities 并列题名：Research of development patterns of urbanization in small and medium-sized cities Research on coordinated development of urbanization and small and medium-sized enterprises Research on the development of Russian small and medium-sized enterprises Case study on the development of metropolitan region and small-medium sized cities research on the process of urbanization in Guangdong province 并列题名：Research on the development of Russian small and medium-sized enterprises Low carbon development strategy and contermeasure of urban transport in medium and small-sized cities Research on the innovation development path and the poliocy support systems of China's small and medium sized enterprises