Keller, Gerta. 2012. “The Cretaceous–Tertiary Mass Extinction, Chicxulub Impact, and Deccan Volcanism”. In Earth and Life, 759-93. Dordrecht: Springer Netherlands. doi:10.1007/978-90-481-3428-110.1007/978-90-481-3428-1_25.

Keller, G., T. Abramovich, T Adatte, and Z. Berner. 2011. “Biostratigraphy, Age of Chicxulub Impact, and Depositional Environment of the Brazos River KTB Sequences”. In The End-Cretaceous Mass Extinction and the Chicxulub Impact in Texas, SEPM, Special Publication, No. 100:81-122. Tulsa: SEPM (Society for Sedimentary Geology).

Keller, G. 2011. “Cretaceous-Tertiary Mass Extinction in Marginal and Open Marine Environments: Texas, U.S.A., and Tunisia”. In The End-Cretaceous Mass Extinction and the Chicxulub Impact in Texas, SEPM, Special Publication, No. 100:197-226. Tulsa: SEPM (Society for Sedimentary Geology).

Keller, G., T. Adatte, A. Juez, and J. Lopez-Oliva. (2009) 2009. “New Evidence Concerning the Age and Biotic Effects of the Chicxulub Impact in NE Mexico”. Journal of the Geological Society 166 (3): 393-411. doi:10.1144/0016-76492008-116.