TY  - JOUR
AU  - Butler, James
AU  - Johnson, B.
AU  - Barnes, R
C2  - The Earth Observer
DA  - 2002-01-01 00:01:00
LA  - en
M1  - 14
PB  - The Earth Observer
PY  - 2002
TI  - Radiometric Measurement Comparisons at NASA's Goddard Space Flight Center: Part I. The GSFC Sphere Sources
ER  -