Analysis of information sources in references of the Wikipedia article "Kutrigurs" in English language version.
Sometime about A.D. 463 a series of nomadic migrations was set off in Inner Asia... Archeological and literary evidence permits us to place the homeland of these newcomers, the Oghur tribes, in Western Siberia and the Kazakh steppes... The Oghurs were part of a large Turkic tribal grouping known in Chinese sources as the Tieh-lê, who were to be found in Inner Asia as well The fluidity of the situation in the steppes is mirrored in our sources, a kaleidoscope of dissolving and reforming tribal unions... Although some of the antecedents of this important migration are still unclear, there can be no doubt that the 0ghur tribes now became the dominant element in the Ponto-Caspian steppes. The term Oghur denoted "grouping of kindred tribes, tribal union" and figures in their ethnonyms: Onoghur, Saraghur, etc. The language of these Oghur tribes, which survives today only in Chuvash, was distinct from that of Common Turkic. In 480 we find our earliest firm notice on the Bulghars ("Mixed Ones"), a large conglomeration of Oghur, Hunnic and other elements. In addition, we have reports about the activities of the Kutrighurs and Utrighurs who appear in our sources under their own names, as "Huns" and perhaps even as "Bulghars." Their precise relationship to the latter cannot be determined with any certainty, but all three clearly originated in the same Hunno-Oghur milieu.
