1. W. H. Auden, The Dyer's Hand, Vintage Books, New York, 1968.
2. C. S. Lewis, That Hideous Strength, Macmillan, New York, 1969.
3. B. B. Mandelbrot, Fractals: form, chance, and dimension, Freeman, San Francisco, 1977.
4. B. B. Mandelbrot, The Fractal Geometry of Nature, Freeman, San Francisco, 1983.