%0 Journal Article %A Satyanarayana, M. %T A class of commutative semigroups in which the idempotents are linearly ordered %J Czechoslovak Mathematical Journal %D 1971 %P 633-637 %V 21 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1971.101062/ %R 10.21136/CMJ.1971.101062 %G en %F 10_21136_CMJ_1971_101062