Abbeduto, L., Murphy, M. M., Cawthon, S. W., Richmond, E. K., Weissman, M. D., Karadottir, S. & O'Brien, A. (2003). Receptive language skills of adolescents and young adults with Down or fragile X syndrome. American Journal on Mental Retardation 108, 149–60.
Bates, E., Dale, P. S. & Thal, D. (1995). Individual differences and their implications for theories of language development. In Fletcher, P. & MacWhinney, B. (eds.), The handbook of child language, 96–151. Oxford: Blackwell.
Bates, E. & Goodman, J. (1997). On the inseparability of grammar and the lexicon: evidence from acquisition, aphasia and real-time processing. Language and Cognitive Processes 12, 507–586.
Bates, E. & Goodman, J. (1999). On the emergence of grammar from the lexicon. In MacWhinney, B. (ed.), The emergence of language, 29–79. Mahwah, NJ: Erlbaum.
Bates, E., Marchman, V., Thal, D., Fenson, L., Dale, P., Reznik, S., Reilly, J. & Hartung, J. (1994). Developmental and stylistic variation in the composition of early vocabulary. Journal of Child Language 21, 85–124.
Berglund, E., Eriksson, M. & Johansson, I. (2001). Parental reports of spoken language skills in children with Down syndrome. Journal of Speech, Language, and Hearing Research 44, 179–91.
Brown, R. (1973). A first language. Cambridge, MA: Harvard University Press.
Byrne, A., Buckley, S., MacDonald, J. & Bird, G. (1995). Investigating the literacy, language and memory skills of children with Down syndrome. Down Syndrome Research & Practice 3, 53–58.
Cardoso-Martins, C., Mervis, C. B. & Mervis, C. A. (1985). Early vocabulary acquisition by children with Down syndrome. American Journal on Mental Deficiency 90, 177–84.
Caselli, M. C., Casadio, P. & Bates, E. (1999). A comparison of the transition from first words to grammar in English and Italian. Journal of Child Language 26, 69–111.
Caselli, M. C., Marchetti, M. C. & Vicari, S. (1994). Conoscenze lessicali e primo sviluppo morfosintattico. In Contardi, A. & Vicari, S. (eds.), Le persone Down, 28–48. Milán: Franco Angeli.
Caselli, M. C., Monaco, L., Trasciani, M. & Vicari, S. (2008). Language in Italian children with Down syndrome and with specific language impairment. Neuropsychology 22(1), 27–35.
Caselli, M. C., Vicari, S., Longobardi, E., Lami, L., Pizzoli, C. & Stella, G. (1998). Gestures and words in early development of children with Down syndrome. Journal of Speech, Language, and Hearing Research 41, 1125–35.
Chapman, R. S. (1995). Language development in children and adolescents with Down Syndrome. In Fletcher, P. & MacWhinney, B. (eds.), The handbook of child language, 641–63. Oxford: Blackwell.
Chapman, R. S., Hesketh, L. J. & Kistler, D. J. (2002). Predicting longitudinal change in language production and comprehension in individuals with Down syndrome: hierarchical linear modelling. Journal of Speech, Language, and Hearing Research 45, 902–915.
Chapman, R. S., Seung, H.-K., Schwartz, S. E. & Kay-Raining, Bird E. (1998). Language skills of children and adolescents with Down syndrome: II. Production deficits. Journal of Speech, Language, and Hearing Research 41, 861–73.
Dixon, J. A. & Marchman, V. A. (2007). Grammar and the lexicon: developmental ordering in language acquisition. Child Development 78, 190–212.
Eadie, P. A., Fey, M. E., Douglas, J. M. & Parsons, C. L. (2002). Profiles of grammatical morphology and sentence imitation in children with specific language impairment and Down syndrome. Journal of Speech, Language, and Hearing Research 45, 720–32.
Fabbretti, D., Pizzuto, E., Vicari, S. & Volterra, V. (1997). A story description task in children with Down syndrome: lexical and morphosyntactic abilities. Journal of Intellectual Disabilities Research 41, 165–79.
Fenson, L., Dale, P. S., Reznick, J. S., Thal, D., Bates, E., Hartung, J. P., Pethick, S. & Reilly, J. S. (1993). The MacArthur Communicative Development Inventories: user's guide and technical manual. San Diego, CA: Singular Publishing Group.
Fowler, A. E. (1990). Language abilities in children with Down syndrome: evidence for specific syntactic delay. In Cicchetti, D. & Beeghly, M. (eds.), Children with Down syndrome: a developmental perspective, 302–328. Cambridge: Cambridge University Press.
Fowler, A. E., Gelman, R. & Gleitman, L. R. (1994). The course of language learning in children with Down syndrome: longitudinal and language level comparisons with young normally developing children. In Tager-Flusberg, H. (ed.), Constraints on language acquisition: studies of atypical children, 91–140. Hillsdale, NJ: Erlbaum.
Galeote, M., Sebastián, E., Checa, E., Rey, R. & Soto, P. (2011). The development of vocabulary in Spanish children with Down syndrome: comprehension, production and gestures. Journal of Intellectual & Developmental Disability 36, 184–96.
Galeote, M., Soto, P., Checa, E., Gómez, A. & Lamela, E. (2008). The acquisition of productive vocabulary in Spanish children with Down syndrome. Journal of Intellectual & Developmental Disability 33, 292–302.
Grela, B. G. (2002). Lexical verb diversity in children with Down syndrome. Clinical Linguistics & Phonetics 16, 251–63.
Grela, B. G. (2003). Do children with Down syndrome have difficulty with argument structure? Journal of Communication Disorders 36, 263–79.
Iverson, J. M., Longobardi, E. & Casselli, M. C. (2003). Relationship between gestures and words in children with Down's syndrome and typically developing children in the early stages of communicative development. International Journal of Language & Communication Disorders 38, 179–97.
Jackson-Maldonado, D., Thal, D., Fenson, L., Marchman, V. A., Newton, T. & Conboy, B. (2005). CDI-Inventarios MacArthur-Bates del desarrollo de habilidades comunicativas: guía del usuario y manual técnico. México: Manual Moderno.
Jackson-Maldonado, D., Thal, D., Marchman, V., Bates, E. & Gutiérrez-Clellen, V. (1993). Early lexical development in Spanish-speaking infants and toddlers. Journal of Child Language 20, 523–49.
Jenkins, C. (1993). Expressive language delay in children with Down syndrome. Down's Syndrome: Research and Practice 1, 10–14.
Josse, D. (1997). Escala de desarrollo psicomotor de la primera infancia Brunet-Lézine-Revisado [Brunet–Lézine Psychomotor Development Scale-Revised – Spanish edition]. Madrid: Psymtéc.
López-Ornat, S., Gallego, C., Gallo, P., Karousou, A., Mariscal, S. & Martínez, M. (2005). Inventarios de desarrollo comunicativo MacArthur: Manual [The MacArthur Communicative Development Inventories: Manual]. Madrid: TEA.
Miller, J. F. (1988). The developmental asynchrony of language development in children with Down syndrome. In Nadel, L. (ed.), The psychobiology of Down syndrome, 167–98. Cambridge, MA: MIT Press.
Miller, J. F. (1992). Development of speech and language in children with Down syndrome. In Lott, I. T. & McLoy, E. E. (eds.), Clinical care for persons with Down syndrome, 39–50. New York: Academic Press.
Miller, J. F. (1999). Profiles on language development in children with Down syndrome. In Miller, J. F., Leddy, M. & Leavitt, L. A. (eds.), Improving communication of people with Down syndrome, 11–39. Baltimore, MD: Brookes.
Pérez-Pereira, M. & García-Soto, X. R. (2003). El diagnóstico del desarrollo comunicativo en la primera infancia: adaptación de las escalas MacArthur al gallego [The assessment of communicative development in the early years: adaptation of the MacArthur scales to Galician]. Psicothema 15, 352–61.
Roberts, J. E., Price, J., Barnes, E., Nelson, L., Burchinal, M., Hennon, E. A., Moskowitz, L., Edwards, A., Malkin, C., Anderson, K., Misenheimer, J. & Hooper, S. R. (2007). Receptive vocabulary, expressive vocabulary, and speech production of boys with fragile X syndrome in comparison to boys with Down syndrome. American Journal on Mental Retardation 112, 177–93.
Rondal, J. A. (1978). Developmental sentence scoring procedure and the delay-difference question in language development of Down's syndrome children. Mental Retardation 16, 169–71.
Rondal, J. A. (1993). Down' syndrome. In Bishop, D. & Mogford, K. (eds.), Language development in exceptional circumstances, 165–76. Hove: LEA.
Rutter, T. & Buckley, S. (1994). The acquisition of grammatical morphemes in children with Down's syndrome. Down's Syndrome: Research and Practice 2(2), 76–82.
Scarborough, H., Rescorla, L., Tager-Flusberg, H., Fowler, A. & Sudhalter, V. (1991). The relation of utterance length to grammatical complexity in normal and language-disordered groups. Applied Psycholinguistics 12, 23–45.
Singer Harris, N. G., Bellugi, U., Bates, E., Jones, W. & Rossen, M. (1997). Contrasting profiles of language in children with Williams and Down syndromes. Developmental Neuropsychology 13, 345–70.
Slobin, D. I. (1985). Crosslinguistic evidence for the language-making capacity. In Slobin, D. I. (ed.), The crosslinguistic study of language acquisition, Vol. 1, 1157–256. Hillsdale, NJ: Erlbaum.
Thordardottir, E. T., Chapman, R. & Wagner, L. (2002). Complex sentence production by adolescents with Down syndrome. Applied Psycholinguistics 23, 163–83.
Vicari, S., Caselli, M. C. & Tonucci, F. (2000). Asynchrony of lexical and morphosyntactic development in children with Down syndrome. Neuropsychologia 38, 634–44.
Vicari, S., Caselli, M. C., Gagliardi, C., Tonucci, F. & Volterra, V. (2002). Language acquisition in special populations: a comparison between Down and Williams syndromes. Neuropsychologia 40, 2461–70.
Yoder, P. J. & Warren, S. F. (2004). Early predictors of language in children with and without Down syndrome. American Journal on Mental Retardation 109, 285–300.
Zampini, L. & D'Odorico, L. (2011). Lexical and syntactic development in Italian children with Down's syndrome. International Journal of Language & Communication Disorders 46, 386–96.