“Effect of Cloudiness on the Transfer of Solar Energy,” IBM, 1974

“Effect of Cloudiness on the Transfer of Solar Energy,” IBM, 1974, Box: 67, Folder: F257. Karl Wolfgang Böer papers, MSS 0483. University of Delaware Library Special Collections. https://findingaids.lib.udel.edu/repositories/2/archival_objects/90590 Accessed July 26, 2024.