Schmidt Peter. The language of the Olchas

Riga: Acta Universitatis Latviensis 8, 1923, pp. 229-288.The Olchas inhabit both shores of the Amoor approximately from the village Tlyars, in the north to Mariyinsk in the south. The Olcha language does not differ much from the language of their southern neighbours the Goldis, and may be one of many Goldi dialects. Additional texts and vocabularies are included.