TY  - RPRT
TI  - Research technics used in evaluating dental materials : progress report
AU  - Paffenbarger, G C
AU  - Rupp, N W
PY  - 1971
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 10421
DO  - 10.6028/NBS.RPT.10421
ER  -