1. Recurrent magma mingling in successive ignimbrites from Amealco caldera, central Mexico
2. Stratigraphy, K-Ar ages, and magnetostratigraphy of the Acambay graben, central Mexican Volcanic Belt
3. Aguirre-Díaz, G. J., Nelson, S. A., Ferrari, L. and López-Martínez, M. Ignimbrites of the central Mexican Volcanic Belt, Amealco and Huichapan calderas (Querétaro-Hidalgo). Magmatism and tectonics of central and northwestern Mexico-A selection of the 1997 IAVCEI General Assembly excursions: Edited by: Aguirre-Díaz, G. J., Aranda-Gómez, J. J., Carrasco-Núñez, G. and Ferrari, L. pp.1–39. México, D. F.: Universidad Nacional Autónoma de México, Instituto de Geología.
4. Abundances of the elements: Meteoritic and solar