Retrieved 15 February 2012. Cite web URL http://www.bunka.go.jp/bsys/maindetails.asp?register_id=401&item_id=3071 Title 川平湾及び於茂登岳 Publisher Agency for Cultural Affairs URL access date 15 February 2012 ↑ Bamforth, Chris (23 December 2005). "A slow dive into Ishigakijima".