@article{ref1,
title="Czechoslovak railway traffic",
journal="Stat Zprav",
year="1950",
author="",
volume="13",
number="2",
pages="79-79",
abstract="<p>[Abstract unavailable]</p><p>Language: un</p>",
language="un",
issn="",
doi="",
url="http://dx.doi.org/"
}