@article{ref1,
title="Tribal Marxism: the Soviet encounter with Afghanistan",
journal="Conflict",
year="1983",
author="Magnus, Ralph H.",
volume="4",
number="2-4",
pages="339-368",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0149-5941",
doi="",
url="http://dx.doi.org/"
}