1. The Statistical Interpretation of Non Equilibrium Entropy;Prigogine,1972
2. Time Irreversibility and Structure;Prigogine,1972
3. Prigogine, I., George, C., Henin, F. and Rosenfeld, L., Chemica Scripta, Stockholm, to be published.
4. Grécos, A., private communication; see also ref. 2.