00536naa#a2200181#i#4500001001600000005001700016011001400033100004100047101000800088102000700096200009800103210005800201215001000259608002700269675002000296700001800316856002000334EN\\bibl\11607320260315044135.7##a2500-1795##a20161225b2016####ek#y0engy0150####ca0#aRUS##aRU1#aABOUT PERFECT FORMS IN ENGLISH: OR WHAT COGNITIVE APPROACH OFFERS TO GRAMMAReJournal article1#aNizhnevartovskcNizhnevartovsk State Universityd2016##a3 с.##aJournal article2local##a. 81.367.7zRUS#1aPerelgutgN M4#avestnik.nvsu.ru