1. B. B. Mandelbrot, Physica Scripta
2. The Fractal Geometry of Nature;Mandelbrot,1982
3. The Hausdorff dimension of general Sierpiński carpets
4. C. McMullen (to appear).
5. T.J. Bedford. Crinkly Curves, Markov Partitions and Dimension. Ph.D. Thesis (Warwick University, U.K. 1964).