00456naa#a2200169#i#450# EN\RIOR\bibl\5334 20240427130406.6 2409-5087 20141231b2014####ek#y0engy0150####ca RUS RU Utmost North needs a complex nature usage Journal article Moscow Publishing Center RIOR 2014 3 с. Journal article local Sivakov Dmitriy O. riorpub.com