TY - RPRT TI - Development and optimization of pyrrone polymers, June 1966 - June 1967 AU - Karre, L. E. AU - Keller, L. B. AU - Kimmel, B. G. AU - Miller, L. J. PY - 1967 UR - https://ntrs.nasa.gov/citations/19680017595 ID - 19680017595 ER -