1. Helicopter Response to an Airplane's Trailing Vortex
2. 12. Bakker, R. , Visingardi, A. , Van Der Wall, B.G. , Voutsinas, S. , Basset, P.-M. , Campagnolo, F. , Pavel, M.D. , Barakos, G. and White, M. Wind turbine wakes and helicopter operations: an overview of the GARTEUR HC-AG 23 activities, 44th European Rotorcraft Forum, Delft, Netherlands, Sept. 18–21, 2018.
3. Propeller and inflow vortex interaction: vortex response and impact on the propeller performance
4. About the impact of wind turbine blade tip vortices on helicopter rotor trim and rotor blade motion
5. 25. Feil, R. , Rinker, M. and Hajek, M. Flight testing of a coaxial ultralight rotorcraft, 73rd American Helicopter Society Annual Forum and Technology Display, Fort Worth, TX, May 9–11, 2017.