1. Functions Continuous and Singular with Respect to Hausdorff Measure;Rgers;Mathematika,1961
2. The Geometry of Fractal Sets;Falconer,1985
3. Derivatives of Interval Functions;Thomson;Memoirs of AMS,1991
4. On the Derivation of Fractal Function;de Guzman;Fractals in the Fundamental and Applied Sciences,1991