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Your search: author_txt:"D.E.M. Allen found 2 results.
1.
Groundwave and skywave limitations to Canadian class 1 assignments, AM - standard band / Canadian Radio-Television Commission (CRTC). Planning and Development Branch. Systems Development and Technical Evaluation Division; D.E.M. Allen & Associates. [Ottawa] : The Commission, 1975
2.
The optimization of additional assignments on the Canadian Class 1a and 1b frequencies / Canadian Radio-Television Commission (CRTC). Planning and Development Branch. Systems Development and Technical Evaluation Division; Conseil de la radio-télévision canadienne (CRTC); D.E.M. Allen & Associates. [Ottawa] : The Commission, 1975
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