TY - GEN AU - Copley, John R D C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2001-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.960-2 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2001 TI - NIST recommended practice guide ::the fundamentals of neutron powder diffraction/ ER -