1. Allen, G.A. (1968). The place of rhythm in a. theory of language. Working Papers in Phonetics 10, University of California, Los Angeles., 60–84
2. Allen, G.A. (1969). Structure of timing in speech production. Paper read at the meeting of the Acoustical Society of America, San Diego, 4 November 1969
3. The coordination and regulation of movements;Bernstein,1967
4. Just noticeable differences for segment duration in natural speech;Huggins;JASA,1972
5. On the perception of temporal phenomena in speech;Huggins;JASA,1972