TY - RPRT TI - Corrosion evaluation of underground telephone cable shielding materials AU - Fink, J L AU - Mathews, D AU - Hessler, G AU - Speed, E PY - 1988 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 87-3546 DO - 10.6028/NBS.IR.87-3546 ER -