Matthews, Peter J.
Bulletin of the National Museum of Ethnology ; Vol. 29, no. 4 - Osaka-JA : National Museum of Ethnology, 2005. - p. 587-615 : il. - Irregular - Vol. 29, no. 4(2005). - Bulletin of the National Museum of Ethnology ; Vol. 29, no. 4 . - Japón. National Museum of Ethnology. .
Northern Minority Languages. Problems of Survival.
Bulletin of the National Museum of Ethnology ; Vol. 29, no. 4 - Osaka-JA : National Museum of Ethnology, 2005. - p. 587-615 : il. - Irregular - Vol. 29, no. 4(2005). - Bulletin of the National Museum of Ethnology ; Vol. 29, no. 4 . - Japón. National Museum of Ethnology. .
Northern Minority Languages. Problems of Survival.
