@article{ref1,
title="Excessive strain without accident, yet accident in the legal sense",
journal="Geneeskundige Gids",
year="1952",
author="Van esso, I.",
volume="30",
number="3",
pages="59-61",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0016-6464",
doi="",
url="http://dx.doi.org/"
}