1PRAHALAD C K.The Role of Core Competence in the Corporation. Ressearch Technology Management .1993, November -December .
2PATEL P,KEITH P.The technological competencies of the world’ s largest firms: complex and path-dependent ,but not much variety. Research Policy . 1997
3LUNDVALL B A.National Systems of Innovation:Toward a Theory of Inovation and Interactive Learning. . 1992
4PRZYBYLOWICZ E P,TERRENCE W F.Kodak applies strategic intent to the management of technology. Research Technology Management . 1993
2Christopher Casey.??Corporate valuation, capital structure and risk management: A stochastic DCF approach(J)European Journal of Operational Research . 2001 (2)