1. Amit, R./Zott, C. (2000). Value drivers of e-commerce business models, Paper presentetd at the 20th annual international conference of the Strategic Management Society, October 15–18, 2000, Vancouver, British Columbia.
2. Ansoff, I.(1965). Corporate strategy: An analytical approach to business policy for growth and expansion, New York.
3. Andrews, K. (1971). The conept of corporate Strategy, Homewood (I11.).
4. Bain, J. (1956). Barriers to new competition, Cambridge (Mass.).
5. Buaron, R. (1981). New-game strategies, The McKinsey Quarterly, Spring, 24–40.