@article{ref1,
title="Effect of "group spell" upon Shotokan black-belt performance of Heian kata",
journal="Perceptual and motor skills",
year="1999",
author="Layton, C. and Moran, Peter",
volume="89",
number="2",
pages="493-494",
abstract="11 experienced black-belt subjects were individually timed on each of the five Heian kata and then timed again when performing as part of a group. The pull of the group had a significant effect upon timing on two of the kata.<p /><p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}