Maojin Jiang Shlomo Argamon Abdur Chowdhury Kush Sidhu ZED: Explaining Temporal Variations in Query Volume. 485-492 2006 conf/adma/2006 ADMA http://dx.doi.org/10.1007/11811305_53 db/conf/adma/adma2006.html#JiangACS06