Osipowicz, Grzegorz, and Iwona Sobkowiak-Tabaka. “New Evidences for Core Processing of Non-Flint, Lithic Materials in the Late Palaeolithic and Mesolithic of Poland”. Journal of Lithic Studies 1, no. 1 (March 15, 2014): 213-226. Accessed April 19, 2024. http://journals.ed.ac.uk/lithicstudies/article/view/774.