1. M. Kardar, G. Parisi, and Y.-C. Zhang,Phys. Rev. Lett. 56:889 (1986); E. Medina, T. Hwa, M. Kardar, and Y.-C. Zhang,Phys. Rev. A 39:3053 (1989).
2. M. Lagally, ed.,Kinetics of Ordering and Growth at Surfaces (Plenum Press, New York, 1990), and references therein; T. R. Thomas,Rough Surfaces (Longman, London, 1982).
3. M. Eden, inSymposium on Information Theory in Biology, H. P. Yockey, ed. (Pergamon Press, New York, 1958), p. 359.
4. M. J. Vold,J. Colloid Sci. 14:168 (1959).
5. F. Family and T. Vicsek, eds.,Dynamics of Fractal Surfaces (World Scientific, Singapore, 1991); J. Krug and H. Spohn, inSolids Far From Equilibrium: Growth, Morphology and Defects, C. Godr�che, ed. (Cambridge University Press, Cambridge, 1991); L.Sander, inSolids Far From Equilibrium: Growth, Morphology and Defects, C. Godr�che, ed. (Cambridge University Press, Cambridge, 1991); D.E. Wolf, inKinetics of Ordering and Growth at Surfaces, M. Lagally, ed. (Plenum Press, New York, 1990); F. Family,Physica A 168:561 (1990); T. Vicsek,Fractal Growth Phenomena (World Scientific, Singapore, 1989).