1. Report on active volcanoes in Central America during 1957 to 1965;Bohenberger,1966
2. State-of-the-art in volcano forecasting;Decker;Bull. Volcanol.,1974
3. Finite element modelling of surface deformation associated with volcanism;Dieterich;J. Geophys. Res.,1975
4. Introduction to Geophysical Prospecting;Dobrin,1960
5. The geology and petrology of the Amatitlán Quadrangle, Guatemala;Eggers,1971