1. The child's learning of English morphology;Berko;Word,1958
2. Language development and language disorders;Bloom,1978
3. Zum Status des s-Plurals im gegenwärtigen Deutsch;Bornschein,1987
4. A first language: The early stages;Brown,1973
5. Natural morphology: The organization of paradigms and language acquisition;Bybee,1991