郵政省郵政研究所 1993.11

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International Telecommunication Union

International Telecommunication Union 1992

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International Telecommunication Union

ITU 1990 edition of 1990

set , 1 , 2 , 3

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International Telecommunication Union 1990 XVIIth A. P. Düsseldolf 21.5-1.6 1990 CCIR . Recommendations of the CCIR, 1990 : also resolutions and opinions ; Vol. 3

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International Telecommunication Union 1990 XVIIth A. P. Düsseldolf 21.5-1.6 1990 CCIR . Recommendations of the CCIR, 1990 : also resolutions and opinions ; Vol. 10 and 11-pt. 3

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International Telecommunication Union 1990 XVIIth A. P. Düsseldolf 21.5-1.6 1990 CCIR . Recommendations of the CCIR, 1990 : also resolutions and opinions ; Vol. 12

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International Telecommunication Union 1990 XVIIth A. P. Düsseldolf 21.5-1.6 1990 CCIR . Recommendations of the CCIR, 1990 : also resolutions and opinions ; Vol. 11-pt. 1

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International Telecommunication Union 1990 XVIIth A. P. Düsseldolf 21.5-1.6 1990 CCIR . Recommendations of the CCIR, 1990 : also resolutions and opinions ; Vol. 7

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International Telecommunication Union 1990 XVIIth A. P. Düsseldolf 21.5-1.6 1990 CCIR . Recommendations of the CCIR, 1990 : also resolutions and opinions ; Vol. 5

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International Telecommunication Union 1990 XVIIth A. P. Düsseldolf 21.5-1.6 1990 CCIR . Recommendations of the CCIR, 1990 : also resolutions and opinions ; Vol. 4-pt. 1

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