Vertical magnetic noise in the voice frequency band within and above coal mines

An edition of Vertical magnetic noise in the voice frequency band within and above coal mines (1983)

Vertical magnetic noise in the voice frequency band within and above coal mines

By John Durkin

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Publish Date

1983

Publisher

U.S. Dept. of the Interior, Bureau of Mines

Language

eng

Pages

Description:

subjects: Coal mines and mining, Communication systems, Electromagnetic noise, Voice frequency