00623naa#a2200181#i#450# EN\INFRA-M\bibl\75288 20260111132441.7 2587-9111 20240216b2024####ek#y0engy0150####ca RU Features of Designing a Portfolio of Financial Instruments Based on the Evaluation of Beta-Coefficients Journal article Moscow INFRA-M Academic Publishing LLC. 2024 7 с. Journal article local Теория принятия решений. 519.816 Vlasov D. A. Sinchukov Aleksandr Valer'evich zh-szf.ru