Case study on the development of metropolitan region and small-medium sized cities 并列题名：Case study on the development of metropolitan region and small-medium sized cities Legal study on the development of medium and small enterprises 并列题名：Study on the development of China's local medium and small-sized financial institutions Research on the development of Russian small and medium-sized enterprises Research of development patterns of urbanization in small and medium-sized cities On the development of metropolises and universities 并列题名：On the development of metropolises and universities 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