Li-Hsuan Chen, Dun-Wei Cheng, Sun-Yuan Hsieh, Ling-Ju Hung, Chia-Wei Lee, Bang Ye Wu. Approximation Algorithms for the Star k-Hub Center Problem in Metric Graphs. In Thang N. Dinh, My T. Thai, editors, Computing and Combinatorics - 22nd International Conference, COCOON 2016, Ho Chi Minh City, Vietnam, August 2-4, 2016, Proceedings. Volume 9797 of Lecture Notes in Computer Science, pages 222-234, Springer, 2016. [doi]
Abstract is missing.