http://www.nikkei-science.com/page/magazine/0511/child.html

http://gigazine.net/news/20130815-humanoid-sleeping-bag/

http://news.goo.ne.jp/article/yomiuri/world/20130813-567-OYT1T00925.html

http://matome.naver.jp/odai/2137643270955383301

http://headlines.yahoo.co.jp/hl?a=20130816-00000004-mai-soci