Bongki Moon Inés Fernando Vega López Vijaykumar Immanuel Efficient Algorithms for Large-Scale Temporal Aggregation. 744-759 2003 15 IEEE Trans. Knowl. Data Eng. 3 http://www.computer.org/tkde/tk2003/k0744abs.htm db/journals/tkde/tkde15.html#MoonLI03