TY  - RPRT
TI  - Estimation of internal source distributions using external field measurements in radiative transfer.
AU  - Bellman, R. E.
AU  - Kagiwada, H. H.
AU  - Kalaba, R. E.
PY  - 1966
UR  - https://ntrs.nasa.gov/citations/19660053722
ID  - 19660053722
ER  -