@article{ref1,
title="Cement stone in the bronchus",
journal="Vestnik Otorinolaringologii",
year="1967",
author="Sudoma, A. S.",
volume="29",
number="1",
pages="119-120",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0042-4668",
doi="",
url="http://dx.doi.org/"
}