%0 Journal Article %A Ballinger, B. T. %T Completions of Ordered Sets %J Canadian mathematical bulletin %D 1972 %P 469-472 %V 15 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-084-2/ %R 10.4153/CMB-1972-084-2 %F 10_4153_CMB_1972_084_2