A formal perspective on the view selection problem.

Rada Chirkova Alon Y. Halevy Dan Suciu A formal perspective on the view selection problem. 216-237 2002 11 VLDB J. 3 http://dx.doi.org/10.1007/s00778-002-0070-0 db/journals/vldb/vldb11.html#ChirkovaHS02