1. Subsonic and transonic potential flow over helicopter rotor blades;Caradonna;AIAA J.,1972
2. Unsteady subsonic and transonic potential flow over helicopter rotor blades;Isom;NASA-CR-2463,1974
3. Analysis of the quasi-steady flow about an isolated lifting helicopter rotor blade;Arieli;JIAA,1979
4. Effect of tip shape on blade loading characteristics and wake geometry for a two-bladed rotor in hover;Ballard;J. Am. Helicopter Soc.,1980
5. Influence of rotor blade tip shape on tip vortex shedding—an unsteady, inviscid analysis;Maskew,1980