%0 Journal Article %A E. I. Grindlinger %T Unsolvability of the problem of the identity of words for a class of semigroups with solvable isomorphism problem %J Doklady Akademii Nauk %D 1966 %P 519-520 %V 171 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_171_3_a3/ %G ru %F DAN_1966_171_3_a3