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Comparative Analysis of Fixed-vocabulary Communication Techniques

Gregg C. VanderheidenD. P. Kelso

出版	Trace R & D Center on Communication, Control and Computer Access for Handicapped Individuals, University of Wisconsin, 1987
URL	http://books.google.com.hk/books?id=d10M0AEACAAJ&hl=&source=gbs_api