@article{ref1,
title="A comparison of attentional and control shift models of the performance of concurrent tasks",
journal="Acta psychologica",
year="1975",
author="Briggs, G. G.",
volume="39",
number="3",
pages="183-191",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}