Feodor F. Dragan, Chenyu Yan. Collective Tree Spanners in Graphs with Bounded Genus, Chordality, Tree-Width, or Clique-Width. In Xiaotie Deng, Ding-Zhu Du, editors, Algorithms and Computation, 16th International Symposium, ISAAC 2005, Sanya, Hainan, China, December 19-21, 2005, Proceedings. Volume 3827 of Lecture Notes in Computer Science, pages 583-592, Springer, 2005.
Abstract is missing.