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Sharpton V. L.; Marin L. E. (1997). "The Cretaceous–Tertiary impact crater and the cosmic projectile that produced it". Annals of the New York Academy of Sciences.822: 353–80. doi:10.1111/j.1749-6632.1997.tb48351.xArchivováno 30. 5. 2020 na Wayback Machine.