1. Microsoft Corporation, 2005. Encarta ® World English Dictionary, North American Edition. http://encarta.msn.com/dictionary,visited on 8 April 2005.
2. Corman, T. Assignment Revamp: The Challenges of a Chemical Plant Upgrade. In: http://www.maxwideman.com/guests/revamp/intro.htm, visited on 27 December 2004.
3. Fondahl, J.W. (1987) The History of Modern Project Management. Project Management Journal, 28(2), 33–36.
4. Cleland, D.I., King, W.R. (1983) Systems Analysis and Project Management. Mc Graw-Hill, New York. In: Shenhar, A.J. (2001) One Size Does Not Fit All Projects: Exploring Classical Contingency Domains. Management Science, 47(3), 394–415.
5. Oisen, R,P. (1971) Can Project Management Be Defined? Project Management Quarterly, 2(1), 12–14. In: Atkinson, R. (1999). Project Management: Cost, Time and Quality, Two Best Guesses and a Phenomenon, It’s Time to Accept Other Success Criteria. International Journal of Project Management, 17(6), 337–342.