共 10 条
[6]
Evaluating continuous training programmes by using the generalized propensity score.[J].JochenKluve;HilmarSchneider;ArneUhlendorff;ZhongZhao.Journal of the Royal Statistical Society: Series A (Statistics in Society).2012, 2
[8]
The differential effects of public R&D support on firm R&D: Theory and evidence from multi-country data.[J].Chang-Yang Lee.Technovation.2011, 5