@misc{indiciae53e0912022f9, title = {Petrologic monitoring of 1981 and 1982 eruptive products from Mount St. Helens}, author = {K. V. Cashman and J. E. Taggart}, year = {1983}, doi = {10.1126/science.221.4618.1385}, url = {https://pubs.usgs.gov/publication/70011212}, note = {Source identifier: 70011212} }