%0 Journal Article %A Rothman, Neal J. %T Duality and algebraically irreducible semigroups %J Czechoslovak Mathematical Journal %D 1973 %P 24-29 %V 23 %N 1 %I mathdoc %U https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1973.101141/ %R 10.21136/CMJ.1973.101141 %G en %F 10_21136_CMJ_1973_101141