%0 Journal Article
%A Ho, Pak
%T A proof of the crossing number of $K_{3,n}$ in a surface
%J Discussiones Mathematicae. Graph Theory
%D 2007
%P 549-551
%V 27
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DMGT_2007_27_3_a10/
%G en
%F DMGT_2007_27_3_a10