%0 Journal Article
%A Koman, M.
%T On the crossing numbers of graphs
%J Acta Universitatis Carolinae. Mathematica et Physica
%D 1969
%P 9-46
%V 10
%N 1-2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AUCMP_1969__10_1-2_a2/
%G en
%F AUCMP_1969__10_1-2_a2