@article{GDZPPN002082675, title = {Placing and moving spheres in the gaps of a cylinder packing.}, journal = {Elemente der Mathematik}, volume = {46}, year = {1991}, pages = {47-51}, zbl = {0746.52024}, url = {http://dml.mathdoc.fr/item/GDZPPN002082675} }
Kuperberg, W. Placing and moving spheres in the gaps of a cylinder packing.. Elemente der Mathematik, Tome 46 (1991) pp. 47-51. http://gdmltest.u-ga.fr/item/GDZPPN002082675/