@article{ref1,
title="Age changes in the times taken by choice discrimination and the control of movement",
journal="Gerontologia",
year="1961",
author="Welford, A. T.",
volume="5",
number="",
pages="129-145",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0016-898X",
doi="",
url="http://dx.doi.org/"
}