The SHARCS project: Smart hybrid active rotor control systems for noise and vibration attenuation of helicopter rotor blades - Nitzsche, F.; Feszty, D.; Waechter, D.; Bianchi, E.; Voutsinas, S.G.; Gennaretti, M.; Coppotelli, G.; Ghiringhelli, G.L. (My University, 2005)