3[1]David B. Audretach and Maryann P. Feldman R&D Spillovers and the Geography of Innovation and Production AER, 1996,(6).
4[2]Michael Albu :Technological Learning and Innovation in Industrial Clusters in the South,SPRU,Electronic Working Papers Series,Paper No 7,1997.
5[5]Isaksen A: Regional Clusters between Local and Nonlocal Relation ( A Comparative European Study), Paper for IGU Conference, Turion 10-14 July 2001.
7Jaffe A. Real effects of academic research [J]. American Economic Review, 79, 1989.
8Jaffe A, Trajtenberg M , Henderson R. Geographic localisation of knowledge spillovers as evidenced by patent citations [J]. Quarterly Journal of Economics,108, 1993.
9Kenney M . Biotechnology: The University-Industrial Complex [M]. Yale University Press, New Haven. 1986.
10Lundvall B A. National Systems of Innovation[M].London: Pinter. 1993.
4Mirata,M.,T.Emtairah.Industrial symbiosis networks andthe contribution to environmental innovation:The case of theLandskrona industrial symbiosis programme. Journal ofCleaner Production . 2005
