"Echo performance of toll telephone connections in the united states."

Francis P. Duffy et al. (1975)

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DOI: 10.1002/J.1538-7305.1975.TB02836.X

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type: Journal Article

metadata version: 2022-03-29

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Francis P. Duffy, Gary K. McNees, Ingemar Nåsell, T. W. Thatcher Jr.:
Echo performance of toll telephone connections in the united states. Bell Syst. Tech. J. 54(2): 209-243 (1975)

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