TY  - RPRT
TI  - Flat-sided rectilinear trough as a solar concentrator - An analytical study
AU  - Burkhard, D. G.
AU  - Strobel, G. L.
AU  - Burkhard, D. R.
PY  - 1978
UR  - https://ntrs.nasa.gov/citations/19780055727
ID  - 19780055727
ER  -