1. Octonionic Julia sets;Griffin;Chaos, Solitons & Fractals,1992
2. About non-associativity in physics and Caley-Grave's octonions;Sorgsapp;Had.,1979
3. Simple mathematical models with very complicated dynamics;May;Nature,1976
4. Iteration of analytic functions;Siegel;Ann. Math.,1942
5. On the quadratic mapping z → z2 – μ for complex μ and z: the fractal structure of its M set, and scaling;Mandelbrot;Physica,1983