%0 Journal Article %A Kolibiar, Milan %T Convex lines in median groups %J Archivum mathematicum %D 1992 %P 67-75 %V 28 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1992__28_1-2_a8/ %G en %F ARM_1992__28_1-2_a8