ValeyevK. G., and DzhalladovaI. A. “Optimization of Nonlinear Systems of Stochastic Difference Equations”. Ukrains’kyi Matematychnyi Zhurnal 54, no. 1 (January 25, 2002): 3-14. Accessed November 22, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/4035.