TY  - RPRT
TI  - Self-study manual on optical radiation measurements : Part I--Concepts, Chapter 12
AU  - Nicodemus, Fred E
PY  - 1985
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 910-8
DO  - 10.6028/NBS.TN.910-8
ER  -