噴火湾 (Hunka Wan). (PDF 371 kB) International Center for the Environmental Management of Enclosed Coastal Seas, abgerufen am 21. Juli 2021 (japanisch).
harvard.edu
iiif.lib.harvard.edu
William Robert Broughton: A voyage of discovery to the north Pacific Ocean : in which the coastal Asia, ... Japan ... as well as the coast of Corea have been examined and surveyed, performed in His Majesty's Sloop Providence and her tender in the years 1795, 1796, 1797, 1798. Hrsg.: T. Cadell and W. Davies. 1804, S.96–114 (harvard.edu [abgerufen am 21. Juli 2021]).
