%0 Journal Article %A Močkoř, Jiří %A Kontolatou, Angeliki %T Divisor class groups of ordered subgroups %J Communications in Mathematics %D 1993 %P 37-46 %V 1 %N 1 %U http://geodesic.mathdoc.fr/item/COMIM_1993_1_1_a4/ %G en %F COMIM_1993_1_1_a4