%0 Journal Article %A Jakubík, Ján %T On orthogonally $\sigma$-complete lattice ordered groups %J Czechoslovak Mathematical Journal %D 2002 %P 881-888 %V 52 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2002__52_4_a18/ %G en %F CMJ_2002__52_4_a18