%0 Journal Article %A Conrad, Paul F. %A Darnel, Michael R. %T Subgroups and hulls of Specker lattice-ordered groups %J Czechoslovak Mathematical Journal %D 2001 %P 395-413 %V 51 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2001__51_2_a13/ %G en %F CMJ_2001__51_2_a13