1. Universals of tone rules: evidence from West Africa;Hyman;LI,1974
2. Theoretical notes on the acquisition of syntax: a critique of ‘Contextual Generalization’;Bever;PsychRev,1965
3. Progress report on Mandarin tone study;Brotzman;Project on Linguistic Analysis,1964
4. Data on maximum speed of pitch changes;Sundberg;QPSR,1973