%0 Journal Article
%A Jakubík, Ján
%T Quasiorder on Systems of Directed Sets
%J Mathematica slovaca
%D 1974
%P 173-177
%V 24
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MASLO_1974__24_2_a7/
%G en
%F MASLO_1974__24_2_a7