%0 Journal Article %A Petrich, Mario %T On ideals of a semilattice %J Czechoslovak Mathematical Journal %D 1972 %P 361-367 %V 22 %N 3 %I mathdoc %U https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1972.101107/ %R 10.21136/CMJ.1972.101107 %G en %F 10_21136_CMJ_1972_101107