@article{ref1,
title="The accident as a cause of spontaneous pneumothorax",
journal="Ärztliche Wochenschrift",
year="1954",
author="Bange, W.",
volume="9",
number="22",
pages="522-524",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0365-6403",
doi="",
url="http://dx.doi.org/"
}