Keller, Gerta, Thierry Adatte, Wolfgang Stinnesbeck, Mark Affolter, Lionel Schilli, and Jose Lopez-Oliva. 2002. Special Paper 356: Multiple Spherule Layers in the Late Maastrichtian of Northeastern Mexico. Vol. 356. Geological Society of America. doi:10.1130/0-8137-2356-610.1130/0-8137-2356-6.145.
Mark Affolter
First name
Mark
Last name
Affolter