@article{ref1,
title="Transfer between difficult and easy tasks",
journal="British journal of psychology (1953)",
year="1962",
author="Holding, D. H.",
volume="53",
number="",
pages="397-407",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1269",
doi="",
url="http://dx.doi.org/"
}