Comparative study of focal lengthening in the speech of native speakers and Japanese speakers of English 論文 Tomoko Nariai・Kazuyo Tanaka・Yoshiaki Itoh ·2011 ·『Acoustical Science and Technology』 32(2) pp. 54-61 doi:10.1250/ast.32.54
A study on pitch patterns of Japanese speakers of English in comparison with native speakers of English 論文 Tomoko Nariai・Kazuyo Tanaka ·2012 ·『Acoustical Science and Technology』 33(4) pp. 247-254 doi:10.1250/ast.33.247