@article{ref1,
title="The sound attention and the aerodynamically generated noise inside motor cycle helmets",
journal="Proceedings of the International Research Council on the Biomechanics of Injury conference",
year="1981",
author="Aldman, B. and Gustafsson, H. and Nygren, A. and Johansson, Boo and Wersall, J. and Jonasson, H.",
volume="9",
number="",
pages="138-148",
abstract="The aim of this study was to evaluate the attenuation of the sound when using a motorcycle helmet, and to measure the aerodynamically generated noise inside a helmet when driving. The possibility of detecting certain signals was judged, when masking and attention effects were taken into consideration.<p />",
language="en",
issn="2235-3151",
doi="",
url="http://dx.doi.org/"
}