Castro Esnal, A., Pérez de Micou, C., & R. Stern, C. (2011). Obsidian circulation in Chubut, central Patagonia, Argentina: use of extra regional raw materials as a sign of mobility and interaction between hunter gatherers groups. Revista Do Museu De Arqueologia E Etnologia, 21, 93-102. https://doi.org/10.11606/issn.2448-1750.revmae.2011.89963