A perceptual study of the greek vowel space using synthetic stimuli. - Antonis Botinis; Marios Fourakis; John W. Hawks (EUROSPEECH, 1997)

Production and perception of greek vowels in normal and cerebral palsy speech. - Antonis Botinis; Marios Fourakis; John W. Hawks; Ioanna Orfanidou (ExLing, 2006)