J.R. Carson, "Notes on the theory of modulation", Proc. IRE, vol. 10, no. 1 (Feb. 1922), pp. 57-64. /wiki/Proc._IRE ↩
"(G8B06) Carson's Rule - Ham Radio School.com". 25 April 2014. http://hamradioschool.com/g8b06-carsons-rule/ ↩