1H. Mintzberg,"Strategy-making in three modes. ," California Management Review, vol. 16, pp. 44--53, 1973.
2R. Veugelers and B. Cassimani "Make and buy in innovation strategies: evidence from Belgian manufacturing ?rms," Research Policy, vol. 28. pp. 63--80, 1999.
3D. Levinthal and J. March, "A model of adaptive organizational search," Journal of Economic Behavior and Organization vol. 2, pp. 307--353, 1981.
4N. Nohria and R,. Gulati, 'Is Slack Good or Bad for Innovation?," The Academy of Management Journal, voi. 39, pp. 1245-1264, 1996.
5Cyert and J. March, "A Behavioral Theory of theFirm," Prentice--Hail: Englewood Cliffs, vol. NJ, ]963.
6S. Winter,"Schumpeterian competition in alternative technological regimes., ', Journal of Economic Behavior and Organization, vol. 5,pp.287--320, 1984.
7W. M. Cohen and D. A. Levinthal, "Innovation and Learning: The Two Faces of & D,"The Economic Journal, vol. 99, pp. 569--596, 1989.
8R. B. Duncan, "Characteristics of organizational environments and perceived environment uncertainty," Administrative Science quarterly, vol. 17, pp. 515--527, 1972.
9P. Lawrence and J. W. Lorsch, "Differentiation and integration in complex organizations,'Administrative Science Quarterly vol.12,pp.1-47, 1967.