Comments:EAS 146, KW 100, Владимирцов 360, Poppe 110, Ozawa 154-156, Murayama 1962, 108, JOAL 35-36, TMN 1, 329-330), АПиПЯЯ 71. In TMN 2, 608 Doerfer tries to deny the comparison with TM ("es gibt kein Lautgesetz mo. ö = tu. ü"), which is not justified.