Glicken H. The Rockslide -Debris Avalanche of the May 18, 1980, Eruption of Mount St. Helens — 10th Anniversary Perspectives. GS [Internet]. 1990 Sep. 9 [cited 2024 Nov. 24];17(3). Available from: https://journals.lib.unb.ca/index.php/GC/article/view/3668