1. Do children treat clusters as one unit or two?;Barton;Papers and Reports on Child Language Development,1980
2. Markedness and the theory of syllable structure;Cairns;Linguistic Inquiry,1982
3. Word frequency book;Carroll,1971
4. The sound pattern of English;Chomsky,1968
5. On interpreting the error pattern in beginning reading;Fowler;Language and Speech,1977