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Author: Ball Laura Beukelman David Pattee Gary
Publisher: Informa Healthcare
ISSN: 0743-4618
Source: Augmentative & Alternative Communication, Vol.20, Iss.2, 2004-06, pp. : 113-122
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By Burke Rebecca Beukelman David Ball Laura Horn Christy
Augmentative & Alternative Communication, Vol. 18, Iss. 4, 2002-01 ,pp. :