00559naa#a2200193#i#450# EN\INFRA-M\bibl\6814 20240628051019.5 1998-0701 20150817b2015####ek#y0engy0150####ca RUS RU Using Duration and Volatility Rates to Estimate Risk Indexes of Investment Projects Journal article Moscow INFRA-M Academic Publishing LLC. 2015 3 с. Journal article local Titova N. Titov S. Titarenko R. zh-szf.ru