@article{ref1,
title="Patterns and sequences of hitting behavior in mother and infant monkeys (Macaca nemestrina)",
journal="Journal of psychiatric research",
year="1969",
author="Jensen, G. D. and Bobbitt, R. A. and Gordon, Betty N.",
volume="7",
number="1",
pages="55-61",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3956",
doi="",
url="http://dx.doi.org/"
}