Text-to-speech synthesis using a natural voice source. - Stephen D. Pearson; Hector R. Javkin; Kenji Matsui; Takahiro Kamai (ICSLP, 1990)

Improving naturalness in text-to-speech synthesis using natural glottal source. - Kenji Matsui; Stephen D. Pearson; Kazue Hata; Takahiro Kamai (ICASSP, 1991)