Optimizing Star Join Queries for Data Warehousing in Microsoft SQL Server. - César A. Galindo-Legaria; Torsten Grabs; Sreenivas Gukal; Steve Herbert; Aleksandras Surna; Shirley Wang; Wei Yu; Peter Zabback; Shin Zhang (ICDE, 2008)

Plan space analysis: an early warning system to detect plan regressions in cost-based optimizers. - Florian M. Waas; Leo Giakoumakis; Shin Zhang (DBTest, 2011)