1. Describing assimilation;Cruttenden;Le Maître Phonétique,1969
2. Phonological rules in young children;Ingram;JChLang,1973
3. Fourcin A. (1975). Paper given at Third International Child Language Symposium,School of Oriental and African Studies,London.
4. The growth of phonemic and lexical patterns in infant language;Velten;Lg,1943