1. A general theory of the autogyro;Glauert;Aeronautical Research Council R&M 1111,1926
2. Some remarks on the induced velocity field of a lifting rotor and on Glauert's formula;Bramwell;Aeronautical Research Council CP 1301,1974
3. Evaluation of the induced velocity field of an idealized helicopter rotor;Coleman;NACA ARR L5E10,1947
4. The induced velocity field of a rotor;Mangler;Aeronautical Research Council R&M 2642,1950
5. An experimental investigation of the flow through a helicopter in forward flight;Brotherhood;Aeronautical Research Council R&M 2734,1949