TY  - RPRT
TI  - Interim progress report : J-integral method for fitness-for-service assessment
AU  - Read, D T
AU  - McHenry, H I
PY  - 1981
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 81-1648
DO  - 10.6028/NBS.IR.81-1648
ER  -