wbldb
Colyer, M. M.1; Hallam, J. C. F.1; Hui, K.1; Lewis, G. D. W.1; Morfey, C. L.1; Thorpe, J. E.1
User acceptability and economic benefits of hard-shell bicycle helmets:​ results of a UK survey
Proceedings of the 1986 International IRCOBI Conference on the Biomechanics of Impact