H Traunmüller

The sentiphone: a tactual speech communication aid.

H. Traunmüller, H Traunmüller, 1980, Journal of communication disorders.

Paralinguistic Variation and Invariance in the Characteristic Frequencies of Vowels

H. Traunmüller, H Traunmüller, 1988, Phonetica.

Perception of back vowels: effects of varying F1 - F0 Bark distance.

R. P. Fahey, R L Diehl, R. Diehl, 1994, The Journal of the Acoustical Society of America.