1. Problem structuring methods in the Dock: Arguing the case for Soft OR;Ackermann;European Journal of Operational Research,2012
2. Behavioral finance: Psychology, decision-making, and markets;Ackert,2009
3. Scientific method;Ackoff,1962
4. Optimization + objectivity = opt out;Ackoff;European Journal of Operational Research,1977
5. The art of problem solving, accompanied by Ackoffs fables;Ackoff,1978