@techreport{weko_77202_1,
   author	 = "Karapetsas,Eleftherios and Yusuke,Fukazawa and Jun,Ota",
   title	 = "Retrieving Information about Real World Activities from the Web",
   year 	 = "2011",
   institution	 = "The University of Tokyo, The University of Tokyo／NTT DOCOMO, Inc., The University of Tokyo",
   number	 = "2",
   month	 = "aug"
}