00526naa#a2200169#i#450# EN\INFRA-M\bibl\945 20260323105344.1 20131206b2013####ek#y0engy0150####ca RUS RU Model Of Creating Project Portfolio For A Construction Company In The Environment of Uncertainty Journal article Moscow INFRA-M Academic Publishing LLC. 2013 18 с. Journal article local Gergert Dmitriy Ezhova Daria zh-szf.ru