2件 （「the C system」）

Musical Accent in Japanese Morphology 論文

Oreste Pletner ·1924-06-01 ·『Bulletin of the School of Oriental and African Studies』　3(3)　pp. 447-466

doi:10.1017/s0041977x00148505

Japanese Onomatopes and the Origin of Language 論文

W. G. Aston ·1894-01-01 ·『The Journal of the Anthropological Institute of Great Britain and Ireland』　23　pp. 332-332

doi:10.2307/2842085