Комментарии:EAS 91, KW 3, Владимирцов 324, Poppe 55, Цинциус 1972a, 40-45. АПиПЯЯ 290. A Western isogloss. The Turkic forms are relatively late attested and could be < Mong., see TMN 1, 137, Щербак 1997, 199, but the Mong.-Tung. parallel still holds.