@article{articlec15af57f,
title   = {Querying priced information in databases: the conjunctive case},
author = {Carmo, Renato and Feder, Tomás and Kohayakawa, Yoshiharu and Laber, Eduardo Sany and Motwani, Rajeev and O'Callaghan, Liadan and Panigrahy, Rina and Thomas, Dilys},
year = {2007},
doi = {10.1145/1186810.1186819},
journal   = {ACM Transactions on Algorithms (TALG)}
}