@article{GDZPPN000367273, title = {The Union of Balls and Its Dual Shape.}, journal = {Discrete \& computational geometry}, volume = {13}, year = {1995}, pages = {415-440}, zbl = {0826.68053}, url = {http://dml.mathdoc.fr/item/GDZPPN000367273} }
Edelsbrunner, H. The Union of Balls and Its Dual Shape.. Discrete & computational geometry, Tome 13 (1995) pp. 415-440. http://gdmltest.u-ga.fr/item/GDZPPN000367273/