1. Argyris, C., Putnam, R., MacLain Smith, D.: Action science – Concepts, methods and skills for research and intervention. Jossey-Bass, San Francisco (1982)
2. Briggs, R.O., Vreede, G.J., de Dean, D.L.: The Process and Pattern Layer in Collaboration Engineering, working paper, University of Nebraska at Omaha (2005)
3. Briggs, R.O., de Vreede, G.J., Nunamaker Jr., J.F.: Collaboration Engineering with ThinkLets to Pursue Sustained Success with Group Support Systems. Journal of Management Information Systems 19(4), 31–63 (2003)
4. Budd, A.: The Importance of Process in Web Design (2004) (Retrieved on November 10, 2004),
http://www.andybudd.com/archives/2004/01/the_importance_of_process_in_web_design/index.php
5. Checkland, P.B.: Systems thinking, systems practice. Wiley & Sons, Chichester (1981)