TY  - RPRT
TI  - The mixture problem in computer mapping of terrain: Improved techniques for establishing spectral signature, atmospheric path radiance, and transmittance
AU  - Smedes, H. W.
AU  - Hulstrom, R. L.
AU  - Ranson, K. J.
PY  - 1975
UR  - https://ntrs.nasa.gov/citations/19760010438
ID  - 19760010438
ER  -