[10]
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)
[10]
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)