TY - RPRT TI - Flame spreading over the surface of igniting solid rocket propellants and propellant ingredients, part 4 AU - Horowitz, F. A. AU - Mc Alevy, R. F., III AU - Mc Gee, R. S. AU - Wrubel, J. A. PY - 1971 UR - https://ntrs.nasa.gov/citations/19710021954 ID - 19710021954 ER -