%0 Journal Article %A Yu. B. Ermolaev %T A~formula for taking a~power of a~product of two elements of an associative ring %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1976 %P 16-27 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1976_8_a2/ %G ru %F IVM_1976_8_a2