@article{GDZPPN002063107, title = {Remarks on the closest packing of convex discs.}, journal = {Commentarii mathematici Helvetici}, volume = {53}, year = {1978}, pages = {536-541}, zbl = {0406.52006}, url = {http://dml.mathdoc.fr/item/GDZPPN002063107} }
Tóth, L. Fejes. Remarks on the closest packing of convex discs.. Commentarii mathematici Helvetici, Tome 53 (1978) pp. 536-541. http://gdmltest.u-ga.fr/item/GDZPPN002063107/