"Solar flares and prediction", The Proceedings of the Third International Symposium on Bioastronautics and the Exploration of Space, 1965

"Solar flares and prediction", The Proceedings of the Third International Symposium on Bioastronautics and the Exploration of Space, 1965, - 06 JWF 3 Sub- 1 Box 9 Folder 56, Box: 9, Folder: 56. John W. Firor Papers, - 06-JWF. National Center for Atmospheric Research (NCAR) Archives. https://aspace.archives.ucar.edu/repositories/2/archival_objects/9125 Accessed December 27, 2025.