"First Progress Report on National Science Foundation Grant No. G 2549, Polarization Dispersion of the 200 mc Bursts from the Sun for the Year 1 July 1956 to 30 June 1957", June 1957

"First Progress Report on National Science Foundation Grant No. G 2549, Polarization Dispersion of the 200 mc Bursts from the Sun for the Year 1 July 1956 to 30 June 1957", June 1957, Box: 1, Folder: 23. Arecibo Ionospheric Observatory and Electrical Engineering reports, 16-6-3333. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/254563 Accessed December 29, 2025.