共 50 条
- [24] Convergence of R&D intensity in OECD countries: evidence since 1870 Empirical Economics, 2020, 59 : 295 - 306
- [30] Foreign R&D in developing countries:: Empirical evidence from Shanghai, China CHINA REVIEW-AN INTERDISCIPLINARY JOURNAL ON GREATER CHINA, 2006, 6 (01): : 67 - 91