@article{ref1,
title="The Nature of Interests and Their Classification",
journal="American journal of sociology",
year="1917",
author="Kocourek, Albert",
volume="23",
number="3",
pages="359-368",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0002-9602",
doi="10.1086/212758",
url="http://dx.doi.org/10.1086/212758"
}