1. The second cybernetics: deviation-amplifying mutual causal processes;Maruyama;American Scientist,1963
2. On some mathematical problems connected with patterns of growth figures;Ulam;Proceedings & Symposium on Applied Mathematics,1962
3. Generating complex patterns by means of simple rules of interactions;Maruyama;Methodos,1963
4. The second cybernetics: deviation-amplifying mutual causal processes;Maruyama;American Scientist,1963
5. Modern Systems Research for the Behavioural Scientist;Buckley,1968