@article{ref1,
title="Canine responses to familiar and unfamiliar humans",
journal="Aggressive behavior",
year="1979",
author="Rappolt, GA and John, Joby and Thompson, N. S.",
volume="5",
number="2",
pages="155-161",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0096-140X",
doi="",
url="http://dx.doi.org/"
}