@article{ref1,
title="Response alternation: a review",
journal="Journal of psychology, The",
year="1968",
author="Lester, David",
volume="69",
number="1",
pages="131-142",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0022-3980",
doi="",
url="http://dx.doi.org/"
}