Author Title Journal ISSN Publisher Date Volume Number Page URL URL(DOI) Sanefuji Tohru,Inoue Masugi,Ohnishi Masaaki,Morino Hiroaki Business Development of Ubiquitous Sensor Network (USN) IEICE technical report 09135685 The Institute of Electronics, Information and Communication Engineers 2009-01-15 108 398 23-28 http://ci.nii.ac.jp/naid/110007131360/en/