00590naa#a2200181#i#450# EN\\bibl\119689 20260612172539.5 2413-046X 20260421b2026####ek#y0engy0150####ca RU THE DISCOUNT SPECTRUM METHOD FOR ASSESSING THE RELIABILITY OF INVESTMENT PROJECTS Journal article Moscow Electronic science 2026 21 с. Journal article local государственные. 330.322.14 Belova Lyubov' Aleksandrovna Chechulin Aleksey Anatol'evich e-integral.ru