1. Modern helicopter rotor aerodynamics;Conlisk;Prog. Aerosp. Sci.,2001
2. Challenges in understanding the vortex dynamics of helicopter rotor wakes;Leishman;AIAA J.,1998
3. Rotor wakes-key to performance prediction;Landgrebe,1973
4. An actuator disc theory for rotor wake induced velocities;Ormiston,1973
5. A review of helicopter rotor blade tip shapes;Brocklehurst;Prog. Aerosp. Sci.,2013