TY - GEN AU - Berg, John L AU - Graham, Marc AU - Whitney, Kevin C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1981-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.500-76 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1981 TI - Database architectures: ER -