Deissler, R. G. and C.S. Eian. Analytical and Experimental Investigation of Fully Developed Turbulent Flow of Air in a Smooth Tube with Heat Transfer with Variable Fluid Properties, Washington, D.C.: National Advisory Committee for Aeronautics, Technical note 2629, February 1952, Box: 3, Item: FC-52. Hans A. Einstein Flow collection, MS-89/4. Water Resources Collections & Archives. https://public.ucrlib.aspace.cdlib.org/repositories/5/archival_objects/581477 Accessed April 20, 2025.