Comprehensive Tools for Assembler Construction. - W. Robert Collings; Robert E. Noonan; Samuel T. Gregory; John C. Knight; Roy W. Hamm (Softw. Pract. Exp., 1983)

On prototypes vs. mockups. - Samuel T. Gregory (ACM SIGSOFT Softw. Eng. Notes, 1984)

On the provision of backward error recovery in production programming languages. - Samuel T. Gregory; John C. Knight (FTCS, 1989)