BALLIN, Torben Bjarke. Arran pitchstone (Scottish volcanic glass): New dating evidence. Journal of Lithic Studies, [S. l.], v. 2, n. 1, p. 5–16, 2015. DOI: 10.2218/jls.v2i1.1166. Disponível em: https://journals.ed.ac.uk/lithicstudies/article/view/1166. Acesso em: 3 jul. 2024.