@article{ref1,
title="Experiments on bracken poisoning",
journal="British veterinary journal",
year="1950",
author="Perkins, L. E.",
volume="106",
number="10",
pages="377-385",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1935",
doi="",
url="http://dx.doi.org/"
}