@article{ref1,
title="Effects of varied techniques in organizing class competition upon changes in sociometric status",
journal="Research quarterly",
year="1968",
author="Nelson, J. K. and Johnson, B. L.",
volume="39",
number="3",
pages="634-639",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0034-5377",
doi="",
url="http://dx.doi.org/"
}