TY - GEN AU - Spencer, L V AU - Chilton, Arthur B AU - Eisenhauer, Charles C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1980-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.570 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1980 TI - Structure shielding against fallout gamma rays from nuclear detonations: ER -