The effect of reduced spectral information on Japanese consonant perception: comparison between L1 and L2 listeners. - Masahiko Komatsu; Won Tokuma; Shinichi Tokuma; Takayuki Arai (INTERSPEECH, 2000)

Modelling the perceptual identification of Japanese consonants from LPC cepstral distances. - Masahiko Komatsu; Shinichi Tokuma; Won Tokuma; Takayuki Arai (INTERSPEECH, 2001)

Multi-dimensional analysis of sonority: perception, acoustics, and phonology. - Masahiko Komatsu; Shinichi Tokuma; Won Tokuma; Takayuki Arai (INTERSPEECH, 2002)

Physical and perceptual configurations of Japanese fricatives from multidimensional scaling analyses. - Won Tokuma (INTERSPEECH, 2003)

Perceptual space of English fricatives for Japanese learners. - Won Tokuma; Shinichi Tokuma (INTERSPEECH, 2005)

Perception of English minimal pairs in noise by Japanese listeners: does clear speech for L2 listeners help? - Shinichi Tokuma; Won Tokuma (INTERSPEECH, 2013)