TY - GEN AU - E Chew AU - M Swanson AU - K M Stine AU - N Bartol AU - A Brown AU - W Robinson C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2008-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.SP.800-55r1 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2008 TI - Performance measurement guide for information security: ER -