%0 Journal Article %A Sekanina, Milan %T On an Algorithm for Ordering of Graphs %J Canadian mathematical bulletin %D 1971 %P 221-224 %V 14 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-037-7/ %R 10.4153/CMB-1971-037-7 %F 10_4153_CMB_1971_037_7