1. The Fractal Geometry of Nature;Mandelbrot,1977
2. Fractals and self similarity;Hutchinson;Indiana Univ. J. Math.,1981
3. Iterated function systems and the global construction of fractals;Barnsley;Proc. R. Soc. Lond. A,1985
4. Recurrent sets;Dekking;Adv. Math.,1982
5. Self-similar sets. I. Topological Markov chains and mixed self-similar sets;Bandt;Math. Nachr.,1989