TY - RPRT TI - Measurement techniques for high power semiconductor materials and devices : Annual report, January 1, to December 31, 1977 AU - Oettinger, F F PY - 1978 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 78-1474 DO - 10.6028/NBS.IR.78-1474 ER -