@article{ref1,
title="Contrast response of human visual mechanismsensitive to orientation and direction of motion",
journal="Vision research",
year="1969",
author="Pantle, A. and Sekuler, Robert",
volume="9",
number="3",
pages="397-406",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0042-6989",
doi="",
url="http://dx.doi.org/"
}