@article{ref1,
title="Assassination of President Kennedy",
journal="Practitioner",
year="1973",
author="Nichols, J.",
volume="211",
number="265",
pages="625-633",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0032-6518",
doi="",
url="http://dx.doi.org/"
}