TY - GEN AU - Perrey, Arnold G AU - Bell, Barry A C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1991-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.IR.4700 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1991 TI - Performance evaluation of dialed number recorders: ER -