@article{ref1,
title="Slipping on pedestrian surfaces: methods for measuring and evaluating the slip resistance",
journal="International journal of occupational safety and ergonomics",
year="2015",
author="Wetzel, Christoph and Windhövel, Ulrich and Mewes, Detlef and Ceylan, Orhan",
volume="21",
number="3",
pages="256-267",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1080-3548",
doi="10.1080/10803548.2015.1081767",
url="http://dx.doi.org/10.1080/10803548.2015.1081767"
}