Almeida, Ricardo, Nuno R. O. Bastos, and M. Teresa T. Monteiro. “A Fractional Malthusian Growth Model With Variable Order Using an Optimization Approach”. Statistics, Optimization & Information Computing 6, no. 1 (February 27, 2018): 4-11. Accessed April 20, 2025. http://47.88.85.238/index.php/soic/article/view/soic.20180302.