Corpus-based L2 phonological data and semi-automatic perceptual analysis: the case of nasal vowels produced by beginner Japanese learners of French 論文 Sylvain Detey・Isabelle Racine・Julien Eychenne・Yuji Kawaguchi ·2014-09-14 ·pp. 539-543 doi:10.21437/interspeech.2014-132