1. B. Schmittmann and R. K. P. Zia, Statistical mechanics of driven diffusive systems, inPhase Transitions and Critical Phenomena, C. Domb and J. Lebowitz, eds. (Academic, London, 1995), Vol. 17.
2. C. T. MacDonald, J. H. Gibbs, and A. C. Pipkin,Biopolymers 6:1 (1968).
3. F. Spitzer,Adv. Math. 5:246 (1970).
4. T. Ligget,Interacting Particle Systems, New York, Springer-Verlag (1985).
5. J. Krug and H. Spohn, inSolids far from Equilibrium, C. Godreche, ed. (Cambridge, Cambridge University Press, 1991) and references therein.