TY - GEN AU - James T Weaver AU - Thomas P Loftus AU - Robert Loevinger C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1988-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.SP.250-19 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1988 TI - Calibration of gamma-ray-emitting brachytherapy sources: ER -