“Infrared Transmission of the Atmosphere to Solar Radiation,” Gates and Harrop, Applied Optics,, Sept. 1963

“Infrared Transmission of the Atmosphere to Solar Radiation,” Gates and Harrop, Applied Optics,, Sept. 1963, Box: 67, Folder: F261. Karl Wolfgang Böer papers, MSS 0483. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/90594 Accessed July 27, 2024.