%0 Journal Article %A J. JakubĂ­k %T Partially ordered groups with two disjoint elements %J Colloquium Mathematicum %D 1970 %P 39-44 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-21-1-39-44/ %R 10.4064/cm-21-1-39-44 %G en %F 10_4064_cm_21_1_39_44