共 8 条
- [6] Innovation performance and channels for international technology spillovers: Evidence from Chinese high-tech industries[J] . Xiaohui Liu,Trevor Buck.Research Policy . 2007 (3)
- [8] A model for technical inefficiency effects in a stochastic frontier production function for panel data[J] . G. E. Battese,T. J. Coelli.Empirical Economics . 1995 (2)