TY  - RPRT
TI  - Vegetation canopy PAR absorptance and the normalized difference vegetation index - An assessment using the SAIL model
AU  - Goward, Samuel N.
AU  - Huemmrich, Karl F.
PY  - 1992
UR  - https://ntrs.nasa.gov/citations/19920043715
ID  - 19920043715
ER  -