TY  - RPRT
TI  - A new series of X-ray-opaque reinforcing fillers for composite materials : progress report
AU  - Bowen, R L
AU  - Cleek, G W
PY  - 1971
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 10580
DO  - 10.6028/NBS.RPT.10580
ER  -