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Syvertsen, Trine; Enli, Gunn; Mjøs, Ole J.; Moe, Hallvard (2014), "The Nordic Media Company", The Media Welfare State, Nordic Media in the Digital Era, University of Michigan Press, pp. 96–118, doi:10.2307/j.ctv65swsg.8, retrieved 9 January 2025
U.S. patent 4,144,411 – Cellular Radiotelephone System for Different Cell Sizes – Richard H. Frenkiel (Bell Labs), filed 22 September 1976, issued 13 March 1979
O'Neill, A. (2008). "Asad Abidi Recognized for Work in RF-CMOS". IEEE Solid-State Circuits Society Newsletter. 13 (1): 57–58. doi:10.1109/N-SSC.2008.4785694. ISSN1098-4232.