Ronny Lempel Yosi Mass Shila Ofek-Koifman Dafna Sheinwald Yael Petruschka Ron Sivan Just in time indexing for up to the second search. 97-106 2007 conf/cikm/2007 CIKM http://doi.acm.org/10.1145/1321440.1321457 db/conf/cikm/cikm2007.html#LempelMOSPS07