TY  - RPRT
TI  - Marginal defects in amalgam fillings as a result of thermal expansion and flow 
AU  - Petersen, Gert Forum
PY  - 1962
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 7564
DO  - 10.6028/NBS.RPT.7564
ER  -