Upper Cretaceous-Paleogene stratigraphy of sites 689 and 690, Maud Rise (Antarctica)Ocean Drilling Program901–914
Thomas, E., Barrera, E., Hamilton, N., Huber, Brian T., Kennett, J. P., O'Connell, S. B., Pospichal, J. J., Spiess, V., Stott, L. D., Wei, W., and Wise, S. W.,Jr. 1990. "Upper Cretaceous-Paleogene stratigraphy of sites 689 and 690, Maud Rise (Antarctica)." In Proceedings ODP Sci. Results,. Barker, P. F. and Kennett, J. P., editors. 901–914. College Station, TX: Ocean Drilling Program.