Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sayaka Kamon and Yuki Uranishi and Hiroshi Sasaki,"Recognizing needle position using book-attached camera for supporting ""Watoji""",電子情報通信学会技術研究報告 = IEICE technical report : 信学技報,09135685,東京 : 電子情報通信学会,2009-01,108,373,229-232,https://cir.nii.ac.jp/crid/1520009408799814656,