Schilling, Steve P.; Carrara, Paul E.; Thompson, Ren A.; Iwatsubo, Eugene Y. (2004). "Posteruption glacier development within the crater of Mount St. Helens, Washington, USA". Quaternary Research. 61 (3). Elsevier Science (USA): 325–329. Bibcode:2004QuRes..61..325S. doi:10.1016/j.yqres.2003.11.002. S2CID128528280.
Walker, LR; Sikes, DS; DeGange, AR; Jewett, SC; et al. (2013). "Biological legacies: Direct early ecosystem recovery and food web reorganization after a volcanic eruption in Alaska". Écoscience. 20 (3): 240–251. Bibcode:2013Ecosc..20..240W. doi:10.2980/20-3-3603. S2CID86156161.
Schilling, Steve P.; Carrara, Paul E.; Thompson, Ren A.; Iwatsubo, Eugene Y. (2004). "Posteruption glacier development within the crater of Mount St. Helens, Washington, USA". Quaternary Research. 61 (3). Elsevier Science (USA): 325–329. Bibcode:2004QuRes..61..325S. doi:10.1016/j.yqres.2003.11.002. S2CID128528280.
Haugerud, R.A.; Harding, D.J.; Mark, L.E.; Zeigler, J.; Queija, V.; Johnson, S.Y. (December 2004). Lidar measurement of topographic change during the 2004 eruption of Mount St. Helens, WA. American Geophysical Union, Fall Meeting. Vol. 53. p. 1. Bibcode:2004AGUFM.V53D..01H.
Walker, LR; Sikes, DS; DeGange, AR; Jewett, SC; et al. (2013). "Biological legacies: Direct early ecosystem recovery and food web reorganization after a volcanic eruption in Alaska". Écoscience. 20 (3): 240–251. Bibcode:2013Ecosc..20..240W. doi:10.2980/20-3-3603. S2CID86156161.
Schilling, Steve P.; Carrara, Paul E.; Thompson, Ren A.; Iwatsubo, Eugene Y. (2004). "Posteruption glacier development within the crater of Mount St. Helens, Washington, USA". Quaternary Research. 61 (3). Elsevier Science (USA): 325–329. Bibcode:2004QuRes..61..325S. doi:10.1016/j.yqres.2003.11.002. S2CID128528280.
Walker, LR; Sikes, DS; DeGange, AR; Jewett, SC; et al. (2013). "Biological legacies: Direct early ecosystem recovery and food web reorganization after a volcanic eruption in Alaska". Écoscience. 20 (3): 240–251. Bibcode:2013Ecosc..20..240W. doi:10.2980/20-3-3603. S2CID86156161.
Tilling, Robert I; Topinka, Lyn; Swanson, Donald A (1990). "Impact and Aftermath". Eruptions of Mount St. Helens: Past, Present, and Future. 1.01. USGS.
Schilling, Steve P.; Ramsey, David W.; Messerich, James A.; Thompson, Ren A. (8 August 2006). "Rebuilding Mount St. Helens". USGS Scientific Investigations Map 2928. Retrieved 7 March 2007.
Pallister, John S.; Clynne, Michael A.; Wright, Heather M.; Van Eaton, Alexa R.; Vallance, James W.; Sherrod, David R.; Kokelaar, B. Peter (2017). "Eruptive history". Field-Trip Guide to Mount St. Helens, Washington: An overview of the eruptive history and petrology, tephra deposits, 1980 proclastic density current deposits, and the crater. United States Department of the Interior. p. 11. ISSN2328-0328. {{cite book}}: |journal= ignored (help)