1. Bilingualism;Baetens Beardsmore,1982
2. Are there constraints on childhood disfluency?;Bernstein;Journal of Fluency Disorders,1981
3. The rules of early stuttering;Bloodstein;Journal Speech and Hearing Disorders,1974
4. Stuttering as tension and fragmentation;Bloodstein,1975
5. About the nature and the treatment of stuttering in the children of preschool age;Boskis,1940