TY - RPRT TI - Interim progress report : fracture toughness of steel weldments for artic structures AU - Anderson, T L AU - McHenry, H I PY - 1982 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 83-1680 DO - 10.6028/NBS.IR.83-1680 ER -