Raj, A. K., C. M. Oman, and M. F. Reschke, "Application of ordered-statistic filtering to analysis of vertical nystagmus (abstract)", Aviat Space Environ Med, 1994.

Raj, A. K., M. F. Reschke, W. H. Paloski, S. J. Wood, C. M. Oman, and D. S. Calkins, "Supporting studies- Vestibular response to onside pitch with 105 deg/sec step stimuli at acute transition from 1.8-g to 0-g during concentric and eccentric rotation", Spacelab IML-1 Microgravity Vestibular Investigations, no. Final Report-NAS9-18492-1210-N30, Houston, TX, NASA Johnson Space Center, pp. FO-9, 1993.