@conference{freitag1960broadcasting, title = {Broadcasting Closed Circuit and Via Public Transmission Channels Through Master Control Facilities in the Loeb Student Center, New York University}, author = {Freitag, Werner}, booktitle = {Audio Engineering Society Convention 12}, month = {Oct}, year = {1960}, url = {https://www.aes.org/e-lib/browse.cfm?elib=389} }