@article{ref1,
title="Energistic effects of task sequencing",
journal="Human factors",
year="1967",
author="Chase, R. B.",
volume="9",
number="6",
pages="557-562",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}