%0 Journal Article %A Seif, Steve %T Congruence lattices of intransitive G-Sets and flat M-Sets %J Commentationes Mathematicae Universitatis Carolinae %D 2013 %P 459-484 %V 54 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_2013__54_4_a1/ %G en %F CMUC_2013__54_4_a1