TY - RPRT TI - Human operator response speed, frequency, and flexibility - A review, analysis and device demonstration AU - Kelley, C. R. AU - Mitchell, M. B. AU - Proisin, D. J. AU - Wargo, M. J. PY - 1967 UR - https://ntrs.nasa.gov/citations/19670026543 ID - 19670026543 ER -