Shiri Chechik. Improved Distance Oracles and Spanners for Vertex-Labeled Graphs. In Leah Epstein, Paolo Ferragina, editors, Algorithms - ESA 2012 - 20th Annual European Symposium, Ljubljana, Slovenia, September 10-12, 2012. Proceedings. Volume 7501 of Lecture Notes in Computer Science, pages 325-336, Springer, 2012. [doi]
Abstract is missing.