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- Bulletin of the Global Volcanism Network [elektronický zdroj] . . Washington, D.C. : Global Volcanism Network, National Museum of Natural History, 1990- . v.
- Earthquakes& volcanoes [elektronický zdroj] . . Reston, Va. : Washington, D.C. : U.S. Geological Survey ; For sale by the Supt. of Docs., U.S. G.P.O., 1986- . v.