TY  - RPRT
TI  - Crop classification using multidate/multifrequency radar data
AU  - Ulaby, F. T.
AU  - Shanmugam, K. S.
AU  - Narayanan, V.
AU  - Dobson, C.
PY  - 1981
UR  - https://ntrs.nasa.gov/citations/19820016683
ID  - 19820016683
ER  -