%0 Journal Article %A Legendre, Stéphane %T The number of crossings in a regular drawing of the complete bipartite graph %J Journal of integer sequences %D 2009 %V 12 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/JIS_2009__12_5_a2/ %G en %F JIS_2009__12_5_a2