TY  - RPRT
TI  - Characterization of a concentric-core fiber 
AU  - Danielson, B L
AU  - Franzen, D L
AU  - Gallawa, R L
AU  - Kim, E M
AU  - Young, M
PY  - 1982
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 82-1661
DO  - 10.6028/NBS.IR.82-1661
ER  -