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Schulte, P.; et al. (2010). «The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary». Science. 327 (5970): 1214—1218. Bibcode:2010Sci…327.1214S. doi:10.1126/science.1177265. PMID 20203042.
Renne, Paul R.; Deino, Alan L.; Hilgen, Frederik J.; Kuiper, Klaudia F.; Mark, Darren F.; Mitchell, William S.; Morgan, Leah E.; Mundil, Roland; Smit, Jan (7 February 2013). «Time Scales of Critical Events Around the Cretaceous-Paleogene Boundary». Science. 339 (6120): 684—687. Bibcode:2013Sci…339..684R. doi:10.1126/science.1230492. PMID 23393261.
Schulte, P.; et al. (2010). «The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary». Science. 327 (5970): 1214—1218. Bibcode:2010Sci…327.1214S. doi:10.1126/science.1177265. PMID 20203042.