@article{ref1,
title="The Sources and Nature of Statistical Information in Special Fields of Statistics - Rail and Road Statistics",
journal="Journal of the Royal Statistical Society, Series A (Statistics in Society)",
year="1950",
author="Menzler, FAA",
volume="113",
number="3",
pages="352-375",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0964-1998",
doi="",
url="http://dx.doi.org/"
}