Koldehoff, Brad; Loebel, Thomas J. (2009). "Clovis and Dalton: Unbounded and Bounded Systems in the Midcontinent of North America". In Adams, Brian; Blades, Brooke S. (eds.). Lithic Materials and Paleolithic Societies(PDF). West Sussex, UK: Wiley-Blackwell. pp. 277, 283. ISBN978-1-405-16837-3.
Chapter 15, Northern Lake Michigan Coastal Ecological Landscape. from The ecological landscapes of Wisconsin: An assessment of ecological resources and a guide to planning sustainable management. Madison: Wisconsin Department of Natural Resources, 2015. PUB-SS-1131Q 2015, p. Q-53 (p. 63 of the pdf)