1Barney, J. B., 1986, "Strategic Factor Markets: Expectations, Luck and Business Strategy", Management Science,32 (10), pp. 1231-1241.
2Heeley, Michael, 1997,"Appropriating Rents From External Knowledge: The Impact of Absorptive Capacity On Firm Sales Growth And Research Productivity", Frontiers of Entrepreneurship Research, Babson College, MA.
3Porter, M.E., 1980, Competitive Strategy: Techniques for Analyzing Industries and Competitors, New York:Free Press.
4Porter, M.E. , 1985, Competitive Advantage: Creating and Sustaining Superior Performance, New York : Free Press.
5Prahalad, C.K. & Hamel, Gary, 1990, "The Core Competence of the Corporation", Harvard Business Review,May-June 1990.
6Wernefelt, B., 1984, "A Resource-Based View of the Firm", Strategic Management Journal ,5: pp. 171-180.
