TY  - RPRT
TI  - Refracted-ray scanning (refracted near-field scanning) for measuring index profiles of optical fibers 
AU  - Young, M
PY  - 1981
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 1038
DO  - 10.6028/NBS.TN.1038
ER  -