Stephens, C. D., and Chouet, B. A., 2001, Evolution of the December 14, 1989 precursory long-period event swarm at Redoubt Volcano, Alaska: Journal of Volcanology and Geothermal Research, v. 109, n. 1, p. 133-148.
Citation Updated: 2005-06-10 00:04:12