1. M.S. Swapna, H.V.S. Devi, V. Raj, S. Sankararaman, Eur. Phys. J. Plus 133, 106 (2018)
2. K. Falconer, Fractals: a very short introduction (Oxford University Press, United Kingdom, 2013)
3. V. Raj, M.S. Swapna, S. Soumya, S. Sankararaman, Indian J. Phys. 5, 115504 (2019)
4. E.M. Miedziejko, Acta Agrophys. 7, 141 (2006)
5. B.B. Mandelbrot, The fractal geometry of nature (WH freeman, New York, 1983)