Swanson, S. E., Nye, C. J., Miller, T. P., and Avery, V. F., 1994, Geochemistry of the 1989-1990 eruption of Redoubt Volcano: Part II, Evidence from mineral and glass chemistry: in Miller, T. P., (ed.), The 1989-1990 eruptions of Redoubt Volcano, Alaska, Journal of Volcanology and Geothermal Research, v. 62, n. 1-4, p. 453-468.