@techreport{weko_42505_1, author = "川上,豊 and 加藤,康之 and 岩田,恒和", title = "PHS位置情報サービスシステム-POINTER-", year = "1997", institution = "NTTアクセス網研究所, NTTアクセス網研究所, NTTアクセス網研究所", number = "105(1997-GN-025)", month = "nov" }