Malykhin В.И., and Nurtazina К.Б. “Mathematical Analysis of Investment Processes in Uncertainty”. Bulletin of L.N. Gumilyov Eurasian National University. Mathematics, computer science, mechanics series 125, no. 4 (December 30, 2018): 75–94. Accessed December 4, 2024. https://bulmathmc.enu.kz/index.php/main/article/view/33.