TY - RPRT TI - Institute for Materials Science and Engineering nondestructive evaluation : technical activities 1985 AU - Yolken, H T AU - Mordfin, L PY - 1985 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 85-3187 DO - 10.6028/NBS.IR.85-3187 ER -