TY - BOOK AU - Hansen,Robert C. TI - Geometric theory of diffraction SN - 0879421509 PY - 1981/// CY - New York PB - IEEE Press KW - Antennas (electronics) KW - Addresses, essays, lectures KW - Diffraction, geometrical N1 - A volume in the IEEE PRESS Selected Reprint Series, prepared under the sponsorship of the IEEE Antennas and Propagation Society ER -