Not a DOI

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core/journals/ancient-mesoamerica/article/abs/estrategias-para-la-produccion-de-navajas-de-obsidiana-en-la-region-de-zacapu-y-la-vertiente-del-lerma-michoacan-mexico-entre-el-epiclasico-y-el-posclasico-tardio/7E5F6A89A44787F90B27D4CF316F3069 may be a Handle (DOIs are a special sort of Handle). If core/journals/ancient-mesoamerica/article/abs/estrategias-para-la-produccion-de-navajas-de-obsidiana-en-la-region-de-zacapu-y-la-vertiente-del-lerma-michoacan-mexico-entre-el-epiclasico-y-el-posclasico-tardio/7E5F6A89A44787F90B27D4CF316F3069 is a valid Handle you should be able to resolve it at https://hdl.handle.net.