@article{ref1,
title="Experience from the 1980 midnight sun marathon: injuries & training",
journal="Alaska medicine",
year="1981",
author="Caldwell, J.",
volume="23",
number="2",
pages="18-21",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-4538",
doi="",
url="http://dx.doi.org/"
}