Satoko Mamada, Takeaki Uno, Kazuhisa Makino, Satoru Fujishige. An O(n log 2n) Algorithm for the Optimal Sink Location Problem in Dynamic Tree Networks. In Jean-Jacques Lévy, Ernst W. Mayr, John C. Mitchell, editors, Exploring New Frontiers of Theoretical Informatics, IFIP 18th World Computer Congress, TC1 3rd International Conference on Theoretical Computer Science (TCS2004), 22-27 August 2004, Toulouse, France. pages 251-264, Kluwer, 2004.