Foucher, Pascal. “Flint Economy in the Pyrenees: A General View of Siliceous Raw Material Sources and Their Use in the Pyrenean Gravettian”. Journal of Lithic Studies 2, no. 1 (March 15, 2015): 111–129. Accessed July 3, 2024. https://journals.ed.ac.uk/lithicstudies/article/view/1306.