"Physical properties of the labyrinthine fluids and quantification of the phenomenon of caloric stimulation", 3rd Symposium on the Role of the Vestibular Organs in Space Exploration, Pensacola, FL, NASA SP-152, pp. 409-420, January 24-26, 1, 1967.
"Adaptive functions of man in vehicle control systems", 2nd IFAC Symposium 1965: Plenum Press, NY 1966, pp. 43-56, 1966.
"Control engineering approaches to human dynamic spatial orientation", 2nd Symposium on the Role of the Vestibular Organs in Space Exploration, vol. NASA SP-115, Ames research Center, CA, NASA, pp. 217-227, January 25-27, 1, 1966.