@misc{indiciae707abd370e30, title = {Gas emissions and the eruptions of Mount St. Helens through 1982}, author = {T. Casadevall and W. Rose and T. Gerlach and L. P. Greenland and J. Ewert and R. Wunderman and R. Symonds}, year = {1983}, doi = {10.1126/science.221.4618.1383}, url = {https://pubs.usgs.gov/publication/70011339}, note = {Source identifier: 70011339} }