%0 Journal Article %A Leonard, John L. %T Graphs with 6-Ways %J Canadian journal of mathematics %D 1973 %P 687-692 %V 25 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-069-x/ %R 10.4153/CJM-1973-069-x %F 10_4153_CJM_1973_069_x