TY - RPRT TI - Lightweight composite mirror analysis and testing AU - Helms, R. G. AU - Porter, C. P. AU - Wu, Y. C. AU - Kuo, C. P. AU - Miyake, R. N. PY - 1989 UR - https://ntrs.nasa.gov/citations/19900043836 ID - 19900043836 ER -