@article{ref1,
title="Closed-course human factors evaluation of marking and marker visibility by Barrette and Pike (Discussion)",
journal="Transportation research record",
year="2019",
author="Bullough, John D.",
volume="2673",
number="10",
pages="850-851",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0361-1981",
doi="10.1177/0361198119875127",
url="http://dx.doi.org/10.1177/0361198119875127"
}