Erez Kantor, David Peleg. Approximate Hierarchical Facility Location and Applications to the Shallow Steiner Tree and Range Assignment Problems. In Tiziana Calamoneri, Irene Finocchi, Giuseppe F. Italiano, editors, Algorithms and Complexity, 6th Italian Conference, CIAC 2006, Rome, Italy, May 29-31, 2006, Proceedings. Volume 3998 of Lecture Notes in Computer Science, pages 211-222, Springer, 2006. [doi]
Abstract is missing.