Foto N. Afrati, Rada Chirkova. Selecting and Using Views to Compute Aggregate Queries (Extended Abstract). In Thomas Eiter, Leonid Libkin, editors, Database Theory - ICDT 2005, 10th International Conference, Edinburgh, UK, January 5-7, 2005, Proceedings. Volume 3363 of Lecture Notes in Computer Science, pages 383-397, Springer, 2005. [doi]
Abstract is missing.