TY - GEN AU - Swanson, M AU - Bartol, N AU - Sabato, J AU - Hash, J AU - Graffo, L C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2003-01-01 05:01:00 DO - https://doi.org/10.6028/NIST.SP.800-55 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2003 TI - Security metrics guide for information technology systems: ER -