Freedman, S. (September 1946). "Two-way radio for everyone"(PDF). Radio News. 36 (3). New York: Ziff-Davis Publications: 25–27. Retrieved March 24, 2014. This article from the beginning of the microwave era predicted the future value of microwaves for point-to-point communication.
Final Acts WRC-15(PDF). World Radiocommunication Conference. Geneva, Switzerland: International Telecommunications Union. 2015. p. 4. Retrieved 2025-01-12.