TY  - RPRT
TI  - Self-study manual on optical radiation measurements : Part I--Concepts, Chapters 4 and 5
AU  - Nicodemus, Fred E
PY  - 1978
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 910-2
DO  - 10.6028/NBS.TN.910-2
ER  -