@techreport{weko_44986_1,
   author	 = "Niwat,Thepvilojanapong and Yoshito,Tobe and Kaoru,Sezaki",
   title	 = "A Proposal of Secure Group Communication for Wireless Sensor Networks",
   year 	 = "2003",
   institution	 = "Institute of Industrial Science  University of Tokyo, Graduate School of Engineering  Tokyo Denki University, Institute of Industrial Science  University of Tokyo",
   number	 = "126(2003-CSEC-023)",
   month	 = "dec"
}