@article{10_4153_CMB_1963_026_x,
     author = {Tutte, W. T.},
     title = {The {Non-Biplanar} {Character} of the {Complete} {9-Graph}},
     journal = {Canadian mathematical bulletin},
     pages = {319--330},
     year = {1963},
     volume = {6},
     number = {3},
     doi = {10.4153/CMB-1963-026-x},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1963-026-x/}
}