TY  - GEN
AU  - Geist, Jon
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1972-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.TN.594-1
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1972
TI  - Optical radiation measurements ::fundamental principles of absolute radiometry and the philosophy of this NBS program (1968 to 1971) /.
ER  -