1. Microscopic lamellar deformation features in quartz from different geologic environments;Alexopoulos;Lunar Planet. Sci.,1987
2. Extraterrestrial cause for the Cretaceous-Tertiary extinction;Alvarez;Science,1980
3. Toward a theory of impact crises;Alvarez;Eos, Trans. Am. Geophys. Union,1986
4. Shocked quartz grains from K/T boundary sediments;Badjukov;Lunar Planet. Sci.,1986
5. Basalt Volcanism Study Project,1981