%0 Journal Article %A Harborth, Heiko %T Parity of numbers of crossings for complete $n$-partite graphs %J Mathematica slovaca %D 1976 %P 77-95 %V 26 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1976__26_2_a1/ %G en %F MASLO_1976__26_2_a1