1. Acharya, S., Gibbons, P., Poosala, V., Ramaswamy, S.: The aqua approximate query answering system. In: Proc. of ACM SIGMOD (1999)
2. Aggarwal, A., Alpern, B., Chandra, A., Snir, M.: A model for hierarchical memory. In: Proceedings of the Symposium on Theory of Computing (STOC), pp. 305–314 (1987)
3. Amsaleg L., Bonnet P., Franklin M.J., Tomasic A. and Urhan T. (1997). Improving responsiveness for wide-area data access. IEEE Data Eng. 20(3): 3–11
4. Arge, L.: External memory data structures. In: Proc. of ESA, pp. 1–29 (2001)
5. Chakrabarti, K., Garofalakis, M.N., Rastogi, R., Shim, K.: Approximate query processing using wavelets. In: Proceedings of the International Conference on Very Large Databases (VLDB) (2000)