Health & safety issues in computer graphics (Panel Session). - Wordie Parr; David Sliney; R. C. Petersen; W. M. Zuk; William H. Cushman (SIGGRAPH, 1982)

Usable OCR: what are the minimum performance requirements? - William H. Cushman; Purnendu S. Ojha; Cathleen M. Daniels (CHI, 1990)