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2. Head protection, the application of mathematical modelling;WILSON;International Conference on the Biomechanics of Impacts (IRCOBI), September 8–10 1993, Eindhoven (NL),1993
3. Material for motorcycle crash helmets — a finite element parametric study;YETTRAM;Plastics, Rubber and Composites Processing and Applications,1994
4. Effect of polystyrene foam liner density on motorcycle helmet shock absorption;GALE;Plastics, Rubber and Composites Processing and Applications,1985
5. An experimental evaluation of crash helmet design and effectiveness in standard impact test;BEUSENBERG;International Conference on the Biomechanics of Impacts (IRCOBI), September 8–10 1993, Eindhoven (NL),1993