Oman, C. M., I. P. Howard, T. Smith, A. Beall, A. Natapoff, J. Zacher, and H. Jenkin, "STS-90 Experiments on the Role of Visual Cues in Microgravity Spatial Orientation", USRA Bioastronautics Investigators Workshop, Galveston, TX, Universities Space Research Association, Divsion of Space Biomedicine, 2001.

Oman, C. M., I. P. Howard, W. Shebilske, and J. Taube, "Visual Orientation In Unfamiliar Gravito-Inertial Environments", USRA Bioastronautics Investigators Workshop, Galveston, TX, Universities Space Research Association, Division of Space Biomedicine, pp. Paper 186, January 2001.