1. 1) http://www.jamstec.go.jp/frcgc/jcope/htdocs/home.html
2. 3) http://www.ihi.co.jp/ihi/press/2011/2011-11-28/index.html
3. 4) http://www.oist.jp/ja/news-center/photos/latest?page=2
4. 6) G. Kloos, C. A. Gonzalez and T. D. Finnigan: The bioSTREAMTM tidal current energy converter, Proc. of the 8th EWTEC, Uppsala, Sweden, (2009) 426-433
5. 7) http://www.alstom.com/power/renewables/ocean-energy/tidalenergy/