TY - RPRT TI - Active image restoration with a flexible mirror AU - Buffington, A. AU - Crawford, F. S. AU - Muller, R. A. AU - Schwemin, A. J. AU - Smits, R. G. PY - 1976 UR - https://ntrs.nasa.gov/citations/19770041865 ID - 19770041865 ER -