Peta-scale data warehousing at Yahoo! - Mona Ahuja; Cheng Che Chen; Ravi Gottapu; Jörg Hallmann; Waqar Hasan; Richard Johnson; Maciek Kozyrczak; Ramesh Pabbati; Neeta Pandit; Sreenivasulu Pokuri; Krishna Uppala (SIGMOD Conference, 2009)