1. E. G. D. Cohen, inFundamental Problems in Statistical Mechanics, Vol. II, ed. E. G. D. Cohen, North-Holland Publ. Co., Amsterdam (1968).
2. M. H. Ernst,Lectures in Theoretical Physics, Vol. 9C, Gordon and Breach Science Publishers, New York (1967).
3. M. H. Ernst, E. G. D. Cohen, and J. R. Dorfman,Rev. Mod. Phys. 41:296 (1969).
4. J. R. Dorfman and E. G. D. Cohen,J. Math. Phys. 8:282 (1967).
5. I. Prigogine and P. Résibois,Physica 27:629 (1961).