%0 Journal Article %A Jasem, Milan %T On dilations and contractions in Riesz groups %J Časopis pro pěstování matematiky %D 1990 %P 134-141 %V 115 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CPM.1990.108367/ %R 10.21136/CPM.1990.108367 %G en %F 10_21136_CPM_1990_108367