On the Thinnest Coverings of Spheres and Ellipsoids with Balls in Hamming and Euclidean Spaces.

Ilya Dumer Mark S. Pinsker Vyacheslav V. Prelov On the Thinnest Coverings of Spheres and Ellipsoids with Balls in Hamming and Euclidean Spaces. 898-925 2006 conf/gtitc/2006 GTIT-C http://dx.doi.org/10.1007/11889342_57 db/conf/gtitc/gtitc2006.html#DumerPP06