%0 Journal Article %A I.E. Kozhukhov %T On semigroups with minimal or maximal condition on left congruences. %J Semigroup forum %D 1980 %P 337-350 %V 21 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1980__21_134456/ %F SF_1980__21_134456