Шукаев Д, Бимурат Ж, Шукаев М, Семенов A. OPTIMAL PORTFOLIO SELECTION FOR A DEVELOPMENT BANK. JRBA [Internet]. 2018 Dec. 25 [cited 2024 Nov. 23];126(4):104-16. Available from: https://be.kaznu.kz/index.php/math/article/view/2033