1. Cavallucci, D. World Wide status of TRIZ perceptions and uses a survey of results. Proceedings of the ETRIA TRIZ Future Conference, 4-6 November 2009, Timisoara – Romania.
2. Altshuller, G. 40 Principles: TRIZ Keys to Technical Innovation. Worcester, Massachusetts. Technical Innovation Center, Inc. 1997.
3. Osborn, A.F. Applied Imagination. New York: Charles Scriber's Sons, 1957.
4. Zwicky, F. Discovery Invention, Research Through the Morphological Approach. McMillan, 1969.
5. Whiting, C.H.S. Creative Thinking. Reinhold, New York, 1958.