1. Complexity of answering queries using materialized views;Abiteboul,1998
2. Foundations of Databases;Abiteboul,1995
3. Query answering using views in the presence of dependencies;Afrati,2008
4. Answering queries using views with arithmetic comparisons;Afrati,2002
5. F.N. Afrati, Rewriting conjunctive queries determined by views, in: MFCS, 2007, pp. 78–89.