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In the Vinony graph
Vinony's link graph records 140 inbound references to Ixtenco Otomi, and connects out to Oto-Pamean, Oto-Manguean and Otomi.
It sits within the topics Endangered Oto-Manguean languages, Language articles citing Ethnologue 18 and Language articles with old Ethnologue 18 speaker data.
Vinony links it to 6 Wikipedia language editions.