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Yamaguchi B., 1991: Skeletal remains of the Okhotsk people from the Koetoi and Pirikatai shell mounds in Wakkanai, Hokkaido. 8 pp. (in Japanese). Memoirs of the National Science Museum 24: 141-148.
Yamaguchi B., Ishida H., Matsumura H., 1993: On the skeletal remains of the Kurile Ainu collected by the Late Kingo Hayashi. 19 pp. Memoirs of the National Science Museum 26: 151-169.