http://matimura.cocolog-nifty.com/matimulog/2013/03/smartphone-9b09.html#more

http://gigazine.net/news/20130304-cannabis-museum-barcelona/

http://www.jiji.com/jc/eqa?g=eqa&k=2013031000071

http://www.nikkei.com/article/DGXNASFS08001_Q3A310C1PE8000/

http://www.satsuben.or.jp/events/2013/03details.html