@article{GDZPPN000364681, title = {The Densest Packing of Equal Circles into a Parallel Strip.}, journal = {Discrete \& computational geometry}, volume = {6}, year = {1991}, pages = {95-106}, zbl = {0722.52010}, url = {http://dml.mathdoc.fr/item/GDZPPN000364681} }
Füredi, Z. The Densest Packing of Equal Circles into a Parallel Strip.. Discrete & computational geometry, Tome 6 (1991) pp. 95-106. http://gdmltest.u-ga.fr/item/GDZPPN000364681/