%0 Journal Article %A Fabrici, Imrich %T One-sided principal ideals in the direct product of two semigroups %J Mathematica Bohemica %D 1993 %P 337-342 %V 118 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/MB.1993.126156/ %R 10.21136/MB.1993.126156 %G en %F 10_21136_MB_1993_126156