Guibert, A.G. Determination of the Rate, the Area, and the Distribution of Impingement of Waterdrops on Various Airfoils from Trajectories Obtained on the Differential Analyzer - Addendum I, Los Angeles, CA: University of California, Department of Engineering, 1949, Box: 20, Item: FZ-5. Hans A. Einstein Flow collection, MS-89/4. Water Resources Collections & Archives. https://public.ucrlib.aspace.cdlib.org/repositories/5/archival_objects/583185 Accessed April 21, 2025.