1.

雑誌
雑誌
1. The Bell system technical journal : devoted to the scientific and engineering aspects of electrical communication
出版情報: New York : American Telephone and Telegraph Company, 1922-c1983
巻次（年次）: Vol. 1, no. 1 (July 1922)-v. 62, no. 10 (Dec. 1983)
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2.

雑誌
雑誌
2. IEEE transactions on communications
Institute of Electrical and Electronics Engineers
出版情報: New York : Institute of Electrical and Electronics Engineers, c1972-
巻次（年次）: Vol. 20, no. 1 (Feb. 1972)-
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