[26] Intellectual Property Rights, imitation, and foreign direct investment: theory and evidence, L. Branstetter e.a., Working Paper 13033, National Bureau of Economic Research, Cambridge, 2007.
[26] Intellectual Property Rights, imitation, and foreign direct investment: theory and evidence (Rechte an geistigem Eigentum, Nachahmung und ausländische Direktinvestitionen: Theorie und Nachweis), L. Branstetter et al., Working Paper 13033, National Bureau of Economic Research, Cambridge, 2007