@article{10_4153_CMB_1964_053_2,
     author = {Blundon, W.J.},
     title = {Some {Lower} {Bounds} for {Density} of {Multiple} {Packing}},
     journal = {Canadian mathematical bulletin},
     pages = {565--572},
     year = {1964},
     volume = {7},
     number = {4},
     doi = {10.4153/CMB-1964-053-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1964-053-2/}
}