Research on the financial support for innovative medium and small-sized enterprises 并列题名：Research on the financial support for innovative medium and small-sized enterprises Research on credit management of medium-and small-sized enterprises Research on financing of small and medium-sized enterprises Research on the development of Russian small and medium-sized enterprises 并列题名：Research on credit management of medium-and small-sized enterprises Study on the financial support of cross-border M&A in Shandong's enterprises Research on coordinated development of urbanization and small and medium-sized enterprises Research on the mechanism and effect of cluster innovation of technological small and mid-sized enterprises Research on credit measurement of small and medium sized enterprises