Eric Angel, Evripidis Bampis, Rodolphe Giroudeau. Non-approximability Results for the Hierarchical Communication Problem with a Bounded Number of Clusters. In Burkhard Monien, Rainer Feldmann, editors, Euro-Par 2002, Parallel Processing, 8th International Euro-Par Conference Paderborn, Germany, August 27-30, 2002, Proceedings. Volume 2400 of Lecture Notes in Computer Science, pages 217-224, Springer, 2002. [doi]
Abstract is missing.