%0 Journal Article %A S. I. Adian %T Defining relations and algorithmic problems for groups and semigroups %J Informatics and Automation %D 1966 %P 3-123 %V 85 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1966_85_a0/ %G ru %F TRSPY_1966_85_a0