1. Ace, C. (2001). Successful Marketing Communications: A Practical Guide to Planning and Implementation. Butterworth-Heinemann, Woburn, p. 7 ff.
2. Anderson, J. C., Narus, J. A. and Van Rossum, W. (2006). Customer Value Propositions in Business Markets, Harvard Business Review, March 2006.
3. Buckholtz, T. J. (1986). Site Licensing Lets Users Spend Less Money to Get More Software, InformationWEEK, June 2, 1986.
4. Buckholtz, T. J. (1995). Information Proficiency: Your Key to the Information Age. Wiley (originally, Van Nostrand Reinhold), New York.
5. Buckholtz, T. J. (1996). Evaluating the CIO. Computerworld Leadership Series, Volume II, Issue 2. Computerworld, Framingham, Massachusetts, March 18, 1996.