R. Stewart

Space Flight: IV. Variables of Motion Sickness

R. Stewart, 1985, Perceptual and motor skills.

Space Flight: III. Isolation of Perceptual Variable in Parabola Flight Sickness with Countermeasure to Lower Gastric pH

R. Stewart, 1985, Perceptual and motor skills.

Psychology of Spaceflight: II. Suggested Bases of Space Motion Sickness: Perceptual Disorientation and Elevated Stomach pH

R. Stewart, 1985, Perceptual and motor skills.

Habitability and Behavioral Issues of Space Flight

R. Stewart, 1988 .