@article{Ballin_2015, title={Arran pitchstone (Scottish volcanic glass): New dating evidence}, volume={2}, url={http://journals.ed.ac.uk/lithicstudies/article/view/1166}, DOI={10.2218/jls.v2i1.1166}, number={1}, journal={Journal of Lithic Studies}, author={Ballin, Torben}, year={2015}, month={Mar.}, pages={5-16}