TY  - RPRT
TI  - Nondestructive evaluation, technical activities 1991 
AU  - Yolken, H T
AU  - Gudas, J P
PY  - 1990
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 4393
DO  - 10.6028/NIST.IR.4393
ER  -