Hausdorff and Box Dimensions of Certain Self-Affine Fractals Dimitrios GatzourasSteven Lalley Indiana University Mathematics Journal 1992 text pdf 10.1512/iumj.1992.41.41031 10.1512/iumj.1992.41.41031 en Indiana Univ. Math. J. 41 (1992) 533 - 568 state-of-the-art mathematics http://iumj.org/access/