Dale P. S. et al. 1998. Genetic influence on language delay in two-year-old children. Nature Neuroscience 1: 324–328.
60
Paulesu E., Mehler J. 1998. Neuroscience: Right on in sign language. Nature 392: 233–234.
61
Carter R. 1998. Mapping the mind. Weidenfeld and Nicolson, London.
62
Bishop D. V. M. et al. 1995. Genetic basis of specific language impairment: evidence from twin study. Developmental Medicine and Child Neurology 37: 56–71.
