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2. Ergebn. Aerodyn;Betz,1919
3. Eine Erweiterung der Schrauben Theorie;Betz,1920
4. Black, S.D., 1997. Integrated lifting-surface/Navier–Stokes design and analysis methods for marine propulsors, Ph.D. Thesis. Massachusetts Institute of Technology.
5. Marine Propellers and Propulsion;Carlton,1994