@article{ref1,
title="Symbol sign understandability when visibility is poor",
journal="Proceedings of the Human Factors and Ergonomic Society annual meeting",
year="1983",
author="Lerner, Neil D. and Collins, Belinda L.",
volume="27",
number="11",
pages="944-946",
abstract="Subjects viewed slides of symbol signs under difficult viewing conditions, simulating a building emergency situation. The subject indicated whether a symbol meant &quot;exit&quot; or not. Substantial differences in understandability were found among 18 exit symbols. Features that contributed to correct identification of exits and confusion from other messages were identified.<p /><p>Language: en</p>",
language="en",
issn="2169-5067",
doi="10.1177/154193128302701116",
url="http://dx.doi.org/10.1177/154193128302701116"
}