@article{ref1,
title="Foot forces exerted at various aircraft brake-pedal angles",
journal="Human factors",
year="1971",
author="Burke, F. and Hertzberg, H. T.",
volume="13",
number="5",
pages="445-456",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}