1. Allen, G.D. ( 1968b). Experiments on the rhythm of English speech. Working Papers in Phonetics, No. 10( UCLA), 42.
2. Allen, G.D. ( 1968c). On testing for certain stress-timing effects. Working Papers in Phonetics, No. 10( UCLA), 47.
3. Allen, G.D. ( 1968d). The place of rhythm in a theory of language. Working Papers in Phonetics, No. 10( UCLA), 60.