@article{publication-1987,
	author={Gersbach, Hans and Schmutzler, Armin},
	doi={10.1007/s00199-001-0245-8},
	issn={0938-2259},
	journal={Economic Theory},
	number=1,
	pages={59-79},
	publisher={Springer},
	title={Endogenous spillovers and incentives to innovate},
	volume=21,
	year=2003,
}