1. “Electrons, Waves and Messages,”;Pierce,1956
2. “Principles and Applications of Waveguide Transmission.”;Southworth,1950
3. Tentative evaluations of transmission factors for space communication;Kelley,1958
4. The distribution of cosmic radio background radiation;Ko;Proc. Inst. Radio Engrs.,1958
5. Effective antenna temperatures due to oxygen and water vapor in the atmosphere;Hogg;J. Appl. Phys.,1959