Ludvigson, Greg A., Brian J. Witzke, R. M. Joeckel, Robert L. Ravn, Preston Lee Phillips, Luis A. González, and Robert L. Brenner. “New Insights on the Sequence Stratigraphic Architecture of the Dakota Formation in Kansas-Nebraska-Iowa from a Decade of Sponsored Research Activity”. Bulletin (Kansas Geological Survey), no. 258 (January 1, 2010): 1–35. Accessed December 31, 2025. https://journals.ku.edu/kgsbulletin/article/view/20370.