M. N. Fuertes-Prieto, A. Neira-Campos, E. Fernández-Martínez, F. Gómez-Fernández, and E. Alonso-Herrero, “‘Mucientes Chert’ in the Northern Iberian Plateau (Spain)”, JLS, vol. 1, no. 1, pp. 117–135, Mar. 2014.