@article{ref1,
title="The cortical representation of motor units",
journal="Brain: a journal of neurology",
year="1952",
author="Liddell, E. G. T. and Phillips, C. G.",
volume="75",
number="4",
pages="510-525",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0006-8950",
doi="",
url="http://dx.doi.org/"
}