1. The Treia valley north of Rome: volcanic stratigraphy, topographic evolution, and geological influences on human settlement;Alvarez;Geol. Romana,1972
2. Ancient course of the Tiber river near Rome: an introduction to the Middle Pleistocene volcanic stratigraphy of Central Italy;Alvarez;Geol. Soc. Am. Bull.,1973
3. Eruptive source of the “Tufo Rosso a scorie Nere”, a Pleistocene Ignimbrite North of Rome;Alvarez;Geol. Romana,1975
4. Plio-Pleistocene Geological Evolution of the Geothermal Area of Tuscany and Latium;Barberi,1994
5. Rb, Sr, Y, Zr, Nb in some ocean floor basaltic rocks;Cann;Earth Planet. Sci. Lett.,1970