TY - JOUR AU - Leonard, John L. TI - Graphs with 6-Ways JO - Canadian journal of mathematics PY - 1973 SP - 687 EP - 692 VL - 25 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-069-x/ DO - 10.4153/CJM-1973-069-x ID - 10_4153_CJM_1973_069_x ER -