%0 Journal Article %A Jakubíková-Studenovská, Danica %T On directed convex subsets of partial monounary algebras %J Czechoslovak Mathematical Journal %D 1993 %P 675-693 %V 43 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1993.128428/ %R 10.21136/CMJ.1993.128428 %G en %F 10_21136_CMJ_1993_128428