@article{10_4153_CJM_1973_069_x,
     author = {Leonard, John L.},
     title = {Graphs with {6-Ways}},
     journal = {Canadian journal of mathematics},
     pages = {687--692},
     year = {1973},
     volume = {25},
     number = {4},
     doi = {10.4153/CJM-1973-069-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1973-069-x/}
}