%0 Journal Article %A Bartol, Wiktor %T Weak subalgebra lattices of monounary partial algebras %J Commentationes Mathematicae Universitatis Carolinae %D 1990 %P 411-414 %V 31 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1990__31_3_a1/ %G en %F CMUC_1990__31_3_a1