1. Redesigning the Future;Ackoff,1974
2. Optimization + objectivity = opt out;Ackoff;European Journal of Operational Research,1977
3. I am the Emperor - and I want dumplings;Beer;Systems Practice,1989
4. Sociological Paradigms and Organisational Analysis: Elements of the Sociology of Corporate Life;Burrell,1979
5. Systems Thinking, Systems Practice;Checkland,1981