共 12 条
- [4] 质量比数量更重要[N]. 邹承鲁,王志珍.光明日报. 2004
- [5] How many patents does it take to signal innovation quality?[J] . Stefano Comino,Clara Graziano.International Journal of Industrial Organization . 2015
- [6] Does quality matter for innovations in low income markets? The case of the Kenyan mobile phone sector[J] . Christopher Foster.Technology in Society . 2014
- [8] Citations, family size, opposition and the value of patent rights[J] . Dietmar Harhoff,Frederic M Scherer,Katrin Vopel.Research Policy . 2002 (8)
- [9] Threshold effects in non-dynamic panels: Estimation, testing, and inference[J] . Bruce E. Hansen.Journal of Econometrics . 1999 (2)