00574naa#a2200169#i#4500001002200000005001700022011001400039100004100053102000700094200011600101210005100217215001000268608002700278675006600305700001900371856001400390EN\INFRA-M\bibl\4425920250205190746.3##a2587-9111##a20210622b2021####ek#y0engy0150####ca##aRU1#aThe Construction Sector of the Oil and Gas Region in the Face of Declining Investment ActivityeJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2021##a6 с.##aJournal article2local##aЭкономика. Экономические науки. 33#1aLysenkogI. V.4#azh-szf.ru