%0 Journal Article %A Koman, Milan %T New upper bounds for the crossing number of $K_n$ on the Klein bottle %J Časopis pro pěstování matematiky %D 1978 %P 282-288 %V 103 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CPM.1978.117984/ %R 10.21136/CPM.1978.117984 %G en %F 10_21136_CPM_1978_117984