Hoang Thanh Lam Raffaele Perego Nguyen Thoi Minh Quan Fabrizio Silvestri Entry Pairing in Inverted File. 511-522 2009 WISE http://dx.doi.org/10.1007/978-3-642-04409-0_50 conf/wise/2009 db/conf/wise/wise2009.html#LamPQS09