1. Brickner, M. S. (1989). Helicopter flights with night-vision goggles-Human factors aspects (NASA Tech. Memo. No. 101039). Moffett Field, CA: NASA Ames Research Center.
2. A Test of the Spatial-Frequency Explanation of the Müller-Lyer Illusion
3. CBS News. (1990). Night sight [Transcript]. CBS N e w s 4 0 Minutes, 22 (28), 1-7.
4. Crowley, J. S. (1990). Human factors aspects of night vision goggle (NVG) helicopter accidents [Abstract]. Aviation, Space, and Environmental Medicine, 61, 508.
5. Pictorial and motion-based information for depth perception.