- Global Volcanism Program: Urataman
- Broughton, William Robert (1804). A Voyage of Discovery to the North Pacific Ocean; in which the coast of Asia, from the latitude of 35° north to the latitude of 52° north, the island of Insu (commonly known under the name of Jesus), the north, south and east coasts of Japan, the Lieuchieux and adjacent islands, 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 (Printed for T. Cadell and W. Davies ed.). London. p. 480.
- Kuril Islands vacations: Eugene Kaspersky
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