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1.

電子ジャーナル

EJ
IRE Professional Group on Engineering Management
出版情報: New York, N.Y. : Professional Group on Engineering Management
巻次(年次): Vol. PGEM-3 (Mar. 1955)- v. EM-9, no. 4 (Dec. 1962)
オンライン: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=5007355
IEEE 3-9(1955-1962)
2.

電子ジャーナル

EJ
IRE Professional Group on Engineering Management
出版情報: New York, N.Y. : Institute of Radio Engineers
巻次(年次): Vol. PGEM-1 (Feb. 1954)- v. PGEM-2 (Nov. 1954)
オンライン: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=5010148
IEEE 1-2(1954)