1. R. Kimball: The Data Warehouse Toolkit. John Wiley & Sons, 1996
2. R. Haskin, R. Lorie: On Extending the Functions of a Relational Database System. Proc. ACM SIGMOD, Orlando, USA, June 1982, pp. 207–212.
3. R. Agrawal, A. Gupta, S. Sarawagi: Modeling Multidimensional Databases. Proc. 13th ICDE, Birmingham, UK, April 1997, pp. 232–243.
4. J Gray, A. Bosworth, A. Layman, H. Pirahesh: Data Cube: A Relational Aggregation Operator Generalizing Group-By, Cross-Tabs, and Sub-Totals. Technical Report MSRTR-95-22, Microsoft Research, Advance Technology Division, Microsoft Corp., November 1995.
5. A. Bauer, W. Lehner: The Cube-Query-Language for Multidimensional Statistical and Scientific Database Systems. Proc. 5th DASFAA 1997, Melbourne, Australia, April 1997, pp. 263–272.