TY  - GEN
AU  - Robert L Booker
AU  - Donald A McSparron
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1987-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.SP.250-15
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1987
TI  - Photometric calibrations:
ER  -