@techreport{weko_44392_1,
   author	 = "VadimJefteZendejasSamano and Kanta,Matsuura",
   title	 = "Using time to classify spam",
   year 	 = "2007",
   institution	 = "Matsuura Laboratory  The University of Tokyo, Matsuura Laboratory  The University of Tokyo",
   number	 = "126(2007-CSEC-039)",
   month	 = "dec"
}