Use of the helmet retention systems in the Netherlands - Huijbers, J. J. W.; Stichting Wetenschappelijk Onderzoek Verkeersveiligheid (Leidschendam Institute for Road Safety Research SWOV, The Netherlands, 1989)
'R-89-18.'
Bibliography: leaf 8.
Keywords: Motorcycling -- Netherlands -- Safety measures; Traffic accidents -- Netherlands; Safety hats