共 7 条
- [1] CHEN ZD, 2004, W ASIA AFRICA, P46
- [2] INNOVATION, IMITATION, AND INTELLECTUAL PROPERTY-RIGHTS [J]. ECONOMETRICA, 1993, 61 (06) : 1247 - 1280
- [3] KARIKARI JA, 1988, FURTHER ESSAY APPL E
- [4] KUMAR N, 2002, INTELLECTUAL PROPERT, P27
- [5] LI ZB, 1999, W ASIA AFRICA, P61
- [7] WANG Z, 2000, CHINESE PHARM AFFAIR, P363