@article{ref1,
title="Science and the single case",
journal="Psychological reports",
year="1955",
author="Du Mas, Frank M.",
volume="1",
number="3",
pages="65-75",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-2941",
doi="10.2466/pr0.1955.1.3.65",
url="http://dx.doi.org/10.2466/pr0.1955.1.3.65"
}