Miller, Keith B., and Ronald R. West. “Reevaluation of Wolfcampian Cyclothems in Northeastern Kansas: Significance of Subaerial Exposure and Flooding Surfaces”.
Current Research in Earth Sciences 235 (July 1, 1993): 1–26. Accessed April 8, 2025.
https://journals.ku.edu/cres/article/view/11848.