1. a) Proceedings International Symposium on Dynamical Systems, edited byA. Bednarek (New York, N. Y., 1982);
2. b) Current Developments in the Interface: Economics, Econometrics, Mathematics, edited byS. M. Hazenwinkel andA. H. G. Rinnoy Kan (Dordrect, 1982).
3. R. E. Kalman:Current Developments in the Interface: Economics, Econometrics, Mathematics, edited byS. M. Hazenwinkel andA. H. G. Rinnoy Kan (Dordrecht, 1982), p. 135.
4. E. R. Caianiello:Biol. Cybernetics,26, 11 (1977);Int. J. Gen. Systems,8, 81 (1982) (withG. Scarpetta andG. Simoncelli).
5. M. Tribus:Thermostatics and Thermodynamics (New York, N. Y., 1961).