<style face="normal" font="default" size="100%">Trace Element Analysis of Obsidian Artifacts from the Andes: New perspectives on Pre-Hispanic economic interaction in Peru and Bolivia - LBL6343</style>

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<style face="normal" font="default" size="100%">Trace Element Analysis of Obsidian Artifacts from the Andes: New perspectives on Pre-Hispanic economic interaction in Peru and Bolivia - LBL6343</style>