American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
Transactions of the American Institute of Electrical Engineers, Part I:... > 1960 > 78 > 6 > 895 - 900
Transactions of the American Institute of Electrical Engineers, Part I:... > 1960 > 78 > 6 > 872 - 878
Transactions of the American Institute of Electrical Engineers, Part I:... > 1963 > 82 > 3 > 346 - 357