TY - RPRT TI - Microelectronic test patterns NBS-12 and NBS-24 AU - Carver, G P AU - Mattis, R L AU - Buehler, M G PY - 1981 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 81-2234 DO - 10.6028/NBS.IR.81-2234 ER -