TY - RPRT TI - Study of an automatic trajectory following control system AU - Vanlandingham, H. F. AU - Moose, R. L. AU - Zwicke, P. E. AU - Lucas, W. H. AU - Brinkley, J. D. PY - 1983 UR - https://ntrs.nasa.gov/citations/19830021000 ID - 19830021000 ER -