 Yury Zuev reconstructed 悅般 "Yueban"'s underlying form as *"Örpen" ~ "Ürpen", identifiable with the toponym "Örpün" mentioned in Bilge Khagan inscription.Suggesting that Yueban state should be to the northeast of Wusun (instead of northwest), Zuev matched Yueban's eastern section with the town of Urbun in Tuva, whereas Yueban's westernmost part was mentioned as "Urva" in the Vendidad.Zuev also compared *"Örpen" ~ "Ürpen" to the prefecture 咽麫 "Yànmiàn" (supposedly from MC < *"iet-mien" < *"ermen" ~ "örmen"?)