3O. E. Willamson.“Market and Hierarchies: Analysis and Antitrust Implications”[M] .New York: The Free Press, 1975.
4J.Pfeffer & G. Salancik. “The External Control of Organization”, New York: Harper, 1978.
5M. E. Porter. “Competitive Strategy” [M]. New York: The Free Press, 1980.
6B. A. Lundvall. “Product Innovation and User - producer Interaction”[J]. Industrial Development Research Series, Vol 31, Aalbory: Aalbory University Press, 1985.