"Brightness distribution of the sun at 1.45 meters", the astrophysical journal and international astronomical union symposium, 1956, 1957

"Brightness distribution of the sun at 1.45 meters", the astrophysical journal and international astronomical union symposium, 1956, 1957, - 06 JWF 3 Sub- 1 Box 9 Folder 4, Box: 9, Folder: 4. John W. Firor Papers, - 06-JWF. National Center for Atmospheric Research (NCAR) Archives. https://aspace.archives.ucar.edu/repositories/2/archival_objects/9073 Accessed December 27, 2025.