sponsored by National Aeronautics and Space Administration ... [and others] ; held at Lyndon B. Johnson Space Center, Houston, Texas, September 23-25, 1980
by Constantine A. Balanis ... [and others] ; prepared by Telecommunications Research Center, College of Engineering and Applied Science, Arizona State University
by Constantine A. Balanis ... [and others] ; prepared by Telecommunications Research Center, College of Engineering and Applied Science, Arizona State University