TY - RPRT TI - Gas emissions and the eruptions of Mount St. Helens through 1982 AU - T. Casadevall AU - W. Rose AU - T. Gerlach AU - L. P. Greenland AU - J. Ewert AU - R. Wunderman AU - R. Symonds PY - 1983 DO - 10.1126/science.221.4618.1383 UR - https://pubs.usgs.gov/publication/70011339 ID - 70011339 ER -