A Mathematical Theory of Communication By C. E. SHANNON, Reprinted with corrections from The Bell System Technical Journal, Vol. 27, pp. 379–423, 623–656, July, October, 1948. - pdf
Marconi, G. Wireless telegraphic communication. Reson 7, 95–101 (2002). https://doi.org/10.1007/BF02836176 - pdf
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