00566naa#a2200169#i#450# EN\RIOR\bibl\16389 20240519050547.7 2409-6024 20170925b2017####ek#y0engy0150####ca RU ISSUES OF AN OIL AND GAS COMPANY VALUATION: PHENOMENON OF SURGUTNEFTEGAS Journal article Moscow Publishing Center RIOR 2017 8 с. Journal article local Общие вопросы экономических наук. 06.01 grnti Gusev Andrey Alekseevich riorpub.com