@article{10_4153_CMB_1969_014_1,
     author = {Leech, John},
     title = {Six and {Seven} {Dimensional} {Non-Lattice} {Sphere} {Packings}},
     journal = {Canadian mathematical bulletin},
     pages = {151--155},
     year = {1969},
     volume = {12},
     number = {2},
     doi = {10.4153/CMB-1969-014-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-014-1/}
}