TY - RPRT TI - Rigid open-cell polyurethane foam for cryogenic insulation AU - Faddoul, J. R. AU - Lindquist, C. R. AU - Niendorf, L. R. AU - Nies, G. E. AU - Perkins, P. J., Jr. PY - 1971 UR - https://ntrs.nasa.gov/citations/19710000078 ID - 19710000078 ER -