1. How to do things with words;Austin,1965
2. Cognition and communication from 9–13 months: Correlational findings;Bates,1979
3. The acquisition of performatives prior to speech;Bates;Merrill-Palmer Quarterly,1975
4. The emergence of intentional communication;Bretherton;New Directions for Child Development,1979
5. The ontogenesis of speech acts;Bruner;Journal of Child Language,1973