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Line problems in the development of the 12-channel open-wire carrier system
Ilgenfritz, L. M., Hunter, R. N., Whitman, A. L.Volume:
58
Language:
english
Journal:
Electrical Engineering
DOI:
10.1109/ee.1939.6431690
Date:
December, 1939
File:
PDF, 2.35 MB
english, 1939