@article{weko_8973_1,
   author	 = "TINH,Pham Doan and KAWAI,Makoto",
   title	 = "Improved GPS-free ad-hoc network positioning for urban disaster response",
   journal	 = "歴史都市防災論文集",
   year 	 = "2009",
   volume	 = "3",
   number	 = "",
   pages	 = "91--98",
   month	 = "jun"
}