Argoul, F., Arneodo, A., Elezgaray, J., Grasseau, G., & Murenzi, R. (1989). Wavelet Transform of Fractal Aggregates. Physics Letters. Section A: General, Atomic and Solid State Physics, 135(6-7), 327-336. https://doi.org/10.1016/0375-9601(89)90003-0 (Original work published 1989)