@article{00741555,
title = {Dense packings of equal disks in an equilateral triangle: From 22 to 34 and beyond.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {2},
year = {1995},
zbl = {0817.52020},
language = {en},
url = {http://dml.mathdoc.fr/item/00741555}
}
Graham, R.L.; Lubachevsky, B.D. Dense packings of equal disks in an equilateral triangle: From 22 to 34 and beyond.. The Electronic Journal of Combinatorics [electronic only], Tome 2 (1995) . http://gdmltest.u-ga.fr/item/00741555/