No Proceedings available, but a special issue of the Journal of Natural Language Engineering is related to the workshop:
Journal of Natural Language Engineering 4 (1), 1998.
Copestake, Ann, Stefan Langer and Sira Palazuelos-Cagigas (eds.) (1997). Proceedings of the ACL/EACL workshop on NLP for Communication Aids, Madrid. ACL.
Augmentative and Alternative Communication. New Directions in Research and Practice. London: Whurr, Section 2