TY - RPRT TI - Ascent control studies of the 049 and ATP parallel burn solid rocket motor shuttle configurations AU - Ryan, R. S. AU - Mowery, D. K. AU - Hammer, M. AU - Weisler, A. C. PY - 1972 UR - https://ntrs.nasa.gov/citations/19730009127 ID - 19730009127 ER -