@article{ref1,
title="Effects of adult and peer observers on boys' and girls' responses to an aggressive model",
journal="Child development",
year="1971",
author="Martin, M. F. and Gelfand, D. M. and Hartmann, D. P.",
volume="42",
number="4",
pages="1271-1275",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0009-3920",
doi="",
url="http://dx.doi.org/"
}