P. D. van Dalen Luna, B. Bravo Meza, R. Castillo Valle, D. Alfaro Silva, and Y. Marcelo Gonzales, “Introduction to the archaeological study in the Ocros province, Ancash (Ocros, Santiago de Chilcas and Acas districts)”, Investig.soc., vol. 18, no. 32, pp. 89–102, Jun. 2014, doi: 10.15381/is.v18i32.10947.