Hlahla, Clift Kudzai, and Eriyoti Chikodza. “Necessary Condition for Optimal Control of Uncertain Stochastic Systems”. Contemporary Mathematics 6, no. 1 (February 13, 2025): 1037–1050. Accessed February 23, 2025. https://ojs.wiserpub.com/index.php/CM/article/view/5680.