1. The 1980 Eruptions of Mount St. Helens,1981
2. Before eruption H2O content of some high alumina magmas;Anderson;Bulletin Volcanologique,1974
3. Geological aspects of volcano prediction;Baker;Jour. Geol. Soc. (London),1979
4. Remote infrared thermal surveys, a method of monitoring active volcanism at Mount St. Helens;Birnie,1984
5. SO2 emission rates at Mount St. Helens from March 29 through December, 1980;Casadevall,1981