1. On the mechanical principles of the action of propellers;Rankine;Trans. RINA,1865
2. On the part played in the operation of propulsion differences in fluid pressure;Froude;Trans. RINA,1889
3. On the elementary relation between pitch, slip and propulsive efficiency;Froude;Trans. RINA,1878
4. Ergebn. aerodyn. Vers. Anst. Gottingen;Betz,1919
5. Eine Erweiterung der Schrauben Theorie;Betz,1920