HUGHES, R. E.; WERRA, D. H.; SIUDA, R. On The Chemical Composition of ‘Chocolate’ Flint from Central Poland. Archaeologia Polona, [S. l.], v. 54, p. 99–114, 2016. Disponível em: https://journals.iaepan.pl/apolona/article/view/432. Acesso em: 22 nov. 2024.