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- [31] Characteristics of the ionosphere at Washington, D. C., August, 1937 PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1937, 25 (10): : 1354 - 1356
- [33] Characteristics of the ionosphere at Washington, D. C., March, 1938 PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1938, 26 (05): : 640 - 643
- [35] Characteristics of the ionosphere at Washington, D. C., September, 1938 PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1938, 26 (11): : 1408 - 1410
- [36] Characteristics of the ionosphere at Washington, D. C., December, 1937 PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1938, 26 (02): : 236 - 239
- [38] Characteristics of the ionosphere at Washington, D. C., May 1938 PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1938, 26 (07): : 909 - 913
- [39] REOPENING OF THE ARMY MEDICAL SCHOOL IN WASHINGTON, D. C. BOSTON MEDICAL AND SURGICAL JOURNAL, 1901, 145 (20): : 555 - 555
- [40] Characteristics of the ionosphere at Washington, D. C., June, 1937 PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1937, 25 (09): : 1185 - 1187