“The Marine Chert from Las Lezas (Biel, Zaragoza) Within the Lithic Raw Materials Management in the Arba De Biel Sites”. Journal of Lithic Studies 3, no. 2 (September 15, 2016): 375–387. Accessed March 26, 2025. https://journals.ed.ac.uk/lithicstudies/article/view/1419.