Yin Wang, Yinfeng Xu. An Approximation Algorithm for the Smallest Color-Spanning Circle Problem. In Dachuan Xu, Donglei Du, Dingzhu Du, editors, Computing and Combinatorics - 21st International Conference, COCOON 2015, Beijing, China, August 4-6, 2015, Proceedings. Volume 9198 of Lecture Notes in Computer Science, pages 171-182, Springer, 2015. [doi]
Abstract is missing.