%0 Journal Article %A Jakubík, Ján %T On lattice ordered groups having a unique addition %J Czechoslovak Mathematical Journal %D 1990 %P 311-314 %V 40 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1990.102382/ %R 10.21136/CMJ.1990.102382 %G en %F 10_21136_CMJ_1990_102382