TY - RPRT TI - Final report : technical contributions to the development of incipient fault detectionlocation instrumentation AU - Anderson, W E AU - Ramboz, J D AU - Ondrejka, A R PY - 1986 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 86-3392 DO - 10.6028/NBS.IR.86-3392 ER -