@article{ref1,
title="The effects of age on symbol comprehension in central rail hubs in Taiwan",
journal="Applied ergonomics",
year="2012",
author="Liu, Yung-Ching and Ho, Chin-Heng",
volume="43",
number="6",
pages="1016-1025",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-6870",
doi="10.1016/j.apergo.2012.02.004",
url="http://dx.doi.org/10.1016/j.apergo.2012.02.004"
}