http://book.asahi.com/reviews/reviewer/2017021900007.html

http://movie.maeda-y.com/movie/02147.htm

http://gigazine.net/news/20170303-robot-delivery-virginia/

http://www.news24.jp/articles/2017/02/24/07355020.html

http://www.kahoku.co.jp/tohokunews/201703/20170309_73020.html