Shirish Tatikonda Flavio Junqueira Berkant Barla Cambazoglu Vassilis Plachouras On efficient posting list intersection with multicore processors. 738-739 2009 SIGIR http://doi.acm.org/10.1145/1571941.1572104 conf/sigir/2009 db/conf/sigir/sigir2009.html#TatikondaJCP09