TY  - RPRT
TI  - Heat trap - An optimized far infrared field optics system
AU  - Harper, D. A.
AU  - Hildebrand, R. H.
AU  - Winston, R.
AU  - Stiening, R.
PY  - 1976
UR  - https://ntrs.nasa.gov/citations/19760036242
ID  - 19760036242
ER  -