American Institute of Electrical Engineers, Transactions of the
Transactions of the American Institute of Electrical Engineers > 1939 > 58 > 12 > 838 - 845
Transactions of the American Institute of Electrical Engineers > 1939 > 58 > 12 > 830 - 838
Transactions of the American Institute of Electrical Engineers > 1939 > 58 > 12 > 743 - 746
Transactions of the American Institute of Electrical Engineers > 1939 > 58 > 12 > 861 - 870