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3. “Maximum power transfer between two planar apertures in the Fresnel zone,”;Borgiotti;IEEE Trans. Antennas Propagation,1966
4. “Maximum power transfer between finite antennas,”;Heurtley;IEEE Trans. Antennas Propagation,1967
5. “Design of dual-reflector antennas with arbitrary phase and amplitude distributions,”;Galindo;IEEE Trans. Antennas Propagation,1964