1. F.D. Abell, Defining the Business: The Starting Point of Strategic Planning, Prentice-Hall, Upper Saddle River, NJ, 1971.
2. H. Aldrich, E.R. Auster, Even dwarfs started small: liabilities of age and size and their strategic implications, in: Research in Organizational Behavior, Vol. 8, JAI Press, Greenwich, CT, 1986, pp. 165–198.
3. Designing mature Internet business strategies: the ICDT model;Angehrn;European Management Journal,1997
4. J.L. Arbuckle, Amos Users’ Guide Version 3.6, SmallWaters, Chicago, IL, 1997.
5. Seven reasons why Internet projects fail;Ash;UNIX Review’s Performance Computing,1998