共 50 条
- [26] R&D expenditure in the EU: convergence or divergence? ECONOMIC RESEARCH-EKONOMSKA ISTRAZIVANJA, 2020, 33 (01): : 1685 - 1710
- [29] Corporate R&D and firm efficiency: evidence from Europe’s top R&D investors Journal of Productivity Analysis, 2012, 37 : 125 - 140
- [30] Top R&D investors, structural change and the R&D growth performance of young and old firms Eurasian Business Review, 2022, 12 : 1 - 33