@article{Cannell_2015, title={Pattern recognition of universal mathematical constants in Acheulean biface formats}, volume={2}, url={http://journals.ed.ac.uk/lithicstudies/article/view/1182}, DOI={10.2218/jls.v2i1.1182}, number={1}, journal={Journal of Lithic Studies}, author={Cannell, Alan}, year={2015}, month={Mar.}, pages={17-44}