Every reference with a DOI in the deposited reference list resolved to a known
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The 6 references without a DOI — listed, not checked
no DOI — not checkedAmir, R. (1998): “Modelling Imperfectly Appropriable R&D via Spillovers.” Discussion Paper 1/1998, Odense University, Odense, Denmark.
no DOI — not checkedd'Aspremont, C., and Jacquemin, A. (1988): “Cooperative and Noncooperative R&D in Duopoly with Spillovers.”American Economic Review 78: 1133–1137.
no DOI — not checkedGeroski, P. A. (1995): “Do Spillovers Undermine the Incentive to Innovate?” InEconomic Approaches to Innovation, edited by S. Dowrick. Aldershot: Elgar.
no DOI — not checked— (1999): “Subsidizing Cooperative and Noncooperative R&D in Duopoly with Spillovers: a Confirmation.” Delft Economic Papers 1999–3, Delft University of Technology, Delft, The Netherlands.
no DOI — not checkedKamien, M.I., Muller, E., and Zang, I. (1992): “Research Joint Ventures and R&D Cartels.”American Economic Review 82: 1293–1306.
no DOI — not checkedSuzumura, K. (1992): “Cooperative and Noncooperative R&D in an Oligopoly with Spillovers.”American Economic Review 82: 1307–1320.
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