Hayes, Elspeth, Caroline Spry, Richard Fullagar, Anna Tuechler, Petra Schell, and Megan Goulding. “Tool-Use Experiments to Determine the Function of an Incised Ground Stone Artefact With Potential Symbolic Significance”. Journal of Lithic Studies 7, no. 3 (December 15, 2020): 17 p. Accessed March 28, 2024. http://journals.ed.ac.uk/lithicstudies/article/view/3088.