wbldb
Aldman, B.1; Gustafsson, H.2; Nygren, Å.3bi; Johansson, E.4; Jonasson, E.5; Wersäll, J.6
The sound attenuation and the aerodynamically generated noise inside motor cycle helmets
Proceedings of the 1981 International IRCOBI Conference on the Biomechanics of Impact