@article{ref1,
title="Concurrent task practice conditions and transfer",
journal="Perceptual and motor skills",
year="1972",
author="Rivenes, R. S. and Caplan, C. S.",
volume="34",
number="3",
pages="941-942",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}