共 8 条
[4]
经济学[M]. 中国发展出版社 , (美)萨缪尔森, 1992
[7]
National and international spillovers from R&D: Comparing a neoclassical and an endogenous growth approach[J] . Weltwirtschaftliches Archiv . 1998 (4)
[8]
Standing on the Shoulders of Giants: Cumulative Research and the Patent Law[J] . Suzanne Scotchmer.The Journal of Economic Perspectives . 1991 (1)