%0 Journal Article %A Ahmad Biniaz %T A short proof of the non-biplanarity of $K_9$ %J Journal of Graph Algorithms and Applications %D 2022 %P 75-80 %V 26 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.7155/jgaa.00582/ %R 10.7155/jgaa.00582 %G en %F JGAA_2022_26_1_a4