%0 Journal Article %A K.G. Johnston %T Semimodularity and weak modularity in subalgebra lattices of completely simple semigroups. %J Semigroup forum %D 1986 %P 285-292 %V 33 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1986__33_134814/ %F SF_1986__33_134814