Bill Powers
Perceptual Control Theory (PCT) Applied to
Personality, Psychotherapy,
and Psychopathology
David M. Goldstein, John White, & William T. Powers (Dec 2011)
Other
Journal on Perceptual Control Theory Vol1 No 1, 1999
SCICOS – A dynamic system builder and simulator Wolfgang Zocher
Other
Principles for Intelligent Human-Computer Interaction
Martin Taylor (1992) Principles for intelligent human-computer interaction: a tutorial on layered protocol theory., DCIEM Report 93-32, Dept. Nat. Defence Canada.