By Vanderheiden Gregg   Kelso David   in Augmentative & Alternative Communication

ISSN:0743-4618|3|4|196-206

Informa Healthcare‎(1987)‎

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By Wilkins Stevens Priscilla   Henry Michael R.   Kelso David M.   in Nucleic Acids Research

ISSN:1362-4962|27|7|1719-1727

Oxford University Press‎(1999)‎

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