@article{ref1,
title="Perceptual-motor difficulties",
journal="Special education",
year="1968",
author="Wedell, K.",
volume="57",
number="4",
pages="25-30",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0038-6707",
doi="",
url="http://dx.doi.org/"
}