Santiago V. Ravelo, Carlos E. Ferreira. PTAS's for Some Metric p-source Communication Spanning Tree Problems. In M. Sohel Rahman, Etsuji Tomita, editors, WALCOM: Algorithms and Computation - 9th International Workshop, WALCOM 2015, Dhaka, Bangladesh, February 26-28, 2015. Proceedings. Volume 8973 of Lecture Notes in Computer Science, pages 137-148, Springer, 2015. [doi]
Abstract is missing.