共 8 条
[7]
Is public R&D a complement or substitute for private R&D? A review of the econometric evidence.[J].Paul A. David;Bronwyn H. Hall;Andrew A. Toole.Research Policy.2000, 4
[8]
美国21世纪科技政策.[M].(美)约翰·阿利克(JohnA.Alic)等著;华宏勋等译;.国防工业出版社.1999,