TY - RPRT TI - Development of power system measurements -- Quarterly report October 1, 1981 to December 31, 1981 AU - Hebner, R E PY - 1982 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 82-2501 DO - 10.6028/NBS.IR.82-2501 ER -