The Persecution of the Christians in Japan in the Middle of the Seventeenth Century 論文 Edward Hagemann ·1942-06-01 ·『Pacific Historical Review』 11(2) pp. 151-160 doi:10.2307/3633765
Studies in Colloquial Japanese II Syntax 論文 Bernard Bloch ·1946-09-01 ·『Language』 22(3-Part1) pp. 200-248 doi:10.2307/410208