%0 Journal Article %A Slavík, Václav %T Some primitive classes of lattices closed under the formation of projective images %J Commentationes Mathematicae Universitatis Carolinae %D 1974 %P 65-68 %V 15 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1974__15_1_a4/ %G en %F CMUC_1974__15_1_a4