8George stalk Wtalk, Philip Evans, and Lawrence E. Shulman: Competing on Capabilities: The New Rules of Corporate Strategy, Havard Business Review, March-April 1992,P57-69.
9C.K.Prahalad and Gary Hamel. The Core Competence of the Corporation, Harvard Business Review, May-June 1990,P81.
10B. Wernerfelt, A Resource -Based View of the firm, Strategic Management Journal 5, 1984,P171-180.