TY - RPRT TI - Composite solid propellant flame microstructure determination Annual report, 23 Jun. 1967 - 22 Jun. 1968 AU - Friedman, R. AU - Hertzberg, M. AU - Mc Hale, E. T. AU - Von Elbe, G. PY - 1968 UR - https://ntrs.nasa.gov/citations/19680023968 ID - 19680023968 ER -