%0 Journal Article %A G. U. Oganesyan %T On semigroups with one relation and semigroups without cycles %J Izvestiya. Mathematics %D 1983 %P 89-95 %V 20 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1983_20_1_a4/ %G en %F IM2_1983_20_1_a4