García-Simón, Luis, Rafael Domingo, and Lourdes Montes. 2016. “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 (2), 375-87. https://doi.org/10.2218/jls.v3i2.1419.