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- [3] Subsidizing cooperative and noncooperative R&D in duopoly with spillovers Journal of Economics, 1997, 66 : 151 - 175
- [4] Subsidizing cooperative and noncooperative R&D in duopoly with spillovers JOURNAL OF ECONOMICS-ZEITSCHRIFT FUR NATIONALOKONOMIE, 1997, 66 (02): : 151 - 175
- [7] More on subsidizing cooperative and noncooperative R&D in duopoly with spillovers Journal of Economics, 2000, 72 : 295 - 308
- [8] More on subsidizing cooperative and noncooperative R&D in duopoly with spillovers JOURNAL OF ECONOMICS-ZEITSCHRIFT FUR NATIONALOKONOMIE, 2000, 72 (03): : 295 - 308