El-Kady, M., and Nabila Elsawy. “Legendre Coefficients Method for Linear-Quadratic Optimal Control Problems by Using Genetic Algorithms”. International Journal of Applied Mathematical Research 2, no. 1 (February 23, 2013): 140–150. Accessed May 2, 2024. https://www.sciencepubco.com/index.php/ijamr/article/view/648.