@article{ref1,
title="Sniffing of a shoe-cleaner",
journal="British medical journal: BMJ",
year="1968",
author="Hepple, N. V.",
volume="4",
number="5627",
pages="387-387",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}