1. Dewey, J. M.: 1985, The propagation of sound from the eruption of Mt. St. Helens on 18 May 1980, Northwest Science 59 No. 2, 79?92.
2. Francis, P.: 1983, Giant volcanic calderas, Scientific American 248, No. 6, 60?85.
3. Francis, P. and Self, S.: 1983, The eruption of Krakatau, Scientific American 249, No. 5, 172?187.
4. Garrett, C. J. R.: 1970, A theory of the Krakatoa tide gauge disturbances, Tellus 22, 32?52.
5. Haltiner, G. J. and Williams, R. T.: 1980, Numerical Prediction and Dynamic Meteorology, Wiley, New York.