@article{05122033, title = {On lower bounds of the density of Delone sets and holes in sequences of sphere packings.}, journal = {Experimental Mathematics}, volume = {14}, year = {2005}, pages = {47-57}, doi = {10.1080/10586458.2005.10128908}, zbl = {1108.52021}, language = {en}, url = {http://dml.mathdoc.fr/item/05122033} }
Muraz, G.; Verger-Gaugry, J.-L. On lower bounds of the density of Delone sets and holes in sequences of sphere packings.. Experimental Mathematics, Tome 14 (2005) pp. 47-57. doi : 10.1080/10586458.2005.10128908. http://gdmltest.u-ga.fr/item/05122033/