@article{ref1,
title="Some factors related to insight",
journal="Psychological reports",
year="1955",
author="Feldman, Marvin J. and Bullock, Donald H.",
volume="1",
number="2",
pages="143-152",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-2941",
doi="10.2466/pr0.1955.1.h.143",
url="http://dx.doi.org/10.2466/pr0.1955.1.h.143"
}