Estimating child and adolescent formant frequency values from adult data. - P. Martland; Sandra P. Whiteside; Steve W. Beet; Ladan Baghai-Ravary (ICSLP, 1996)

Analysis of ten vowel sounds across gender and regional/cultural accent. - P. Martland; Sandra P. Whiteside; Steve W. Beet; Ladan Baghai-Ravary (ICSLP, 1996)