1. Notes on the eruption of Etna in April 1975;Booth,1975
2. The summit of Mount Etna prior to the 1971 eruptions;Guest;Philos. Trans. R. Soc. Lond., Ser. A,1973
3. The interpretation of lava flow morphology;Hulme;Geophys. J. R. Astron. Soc.,1974
4. Effusion rates and rheology of lunar lavas;Hulme;Philos. Trans. R. Soc. Lond.,1976
5. The Essentials of Fluid Mechanics;Prandtl,1952