http://www.necst.co.jp/product/robot/
http://www.zdnet.co.jp/news/0305/19/nj00_papero.html
http://japan.cnet.com/news/tech/story/0,2000047674,20054446,00.htm
http://biztech.nikkeibp.co.jp/wcs/leaf/CID/onair/biztech/prom/247600
http://japan.internet.com/webtech/20030521/2.html
http://www.ednjapan.com/l_news/2003/05/20NEC_RoboSudio.html