@article{ref1,
title="Behavior control and freedom of action",
journal="Philosophical review",
year="1978",
author="Greenspan, P. S.",
volume="87",
number="2",
pages="225-240",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-8108",
doi="",
url="http://dx.doi.org/"
}