K. W. Chung, H. S. Y. Chan, Ning Chen General Mandelbrot sets and Julia sets with color symmetry from equivariant mappings of the modular group. [Citation Graph (0, 0)][DBLP] Computers & Graphics, 2000, v:24, n:6, pp:911-918 [Journal]

K. W. Chung, H. S. Y. Chan, B. N. Wang Tessellations with symmetries of the wallpaper groups and the modular group in the hyperbolic 3-space from dynamics. [Citation Graph (0, 0)][DBLP] Computers & Graphics, 2001, v:25, n:2, pp:333-341 [Journal]