%0 Journal Article %A B. E. Breckner %A W. A. F. Ruppert %T On Compactification Lattices of Subsemigroups of SL(2, R) %J Journal of Lie theory %D 2004 %P 073-109 %V 14 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JLT_2004_14_1_JLT_2004_14_1_a5/ %F JLT_2004_14_1_JLT_2004_14_1_a5