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\bibitem{Connors1996} Connors, M., Hildebrand, A. R., Pilkington, M., Ortiz-Aleman, C., Chavez, R. E., Urrutia-Fucugauchi, J., Graniel-Castro, E., Camara-Zi, A., Vasquez, J., \& Halpenny, J. F. (1996). Yucat{\'a}n Karst Features and the Size of Chicxulub Crater.\textit{127}, F11--F14.

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