00527naa#a2200181#i#450# EN\\bibl\113293 20260118143518.7 2311-1402 20080325b2008####ek#y0engy0150####ca RUS RU Poslednee srazhenie Ermaka: istoricheskie istochniki i issledovaniya Journal article Nizhnevartovsk Nizhnevartovsk State University 2008 7 с. Journal article local Kruzhinov V M Sokova Z N vestnik.nvsu.ru