International Astronomical Union Symposium #35, Budapest, Hungary, September 4-8, 1967, 1967

International Astronomical Union Symposium #35, Budapest, Hungary, September 4-8, 1967, 1967, - 04 02 GAN 5 Sub- 2 Box 11 Folder 335, Box: 11, Folder: 335. Gordon A. Newkirk, Jr. Papers, - 04-02-GAN. National Center for Atmospheric Research (NCAR) Archives. https://aspace.archives.ucar.edu/repositories/2/archival_objects/8437 Accessed April 29, 2026.