@article{ref1,
title="Influence of the number of warning signals and of the intervals between them on simple reaction time",
journal="Acta psychologica",
year="1963",
author="Geblewiczowa, M",
volume="21",
number="",
pages="40-48",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0001-6918",
doi="",
url="http://dx.doi.org/"
}