TY - GEN AU - Kupradze, V D C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1952-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.2008 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1952 TI - Fundamental problems in the mathematical theory of diffraction: ER -