7Mandelbrot B B. How long is the coast of Britain, statistical self-similarity and fractal dimension [ J ]. Science, 1967, (156) :636-638.
8Witten T A, Sander L M. Diffusion -limited aggregation:A kinetic critical phenomenon [ J ]. Phys Rev Let t, 1981,47 (19) : 1400-1403.
9Hyungho P, Sang so o K, Hyuksang C. Brownian dynamic simulation for the aggregation of charged particles [ J ]. J Aerosol Sci ,2001, (32) : 1369-1388.
10Francois R J, Van H A A. Structure of hydroxide flocs [ J]. Wat Res, 1985,19( 10): 1249-1254.
