@article{ref1,
title="The practical joke that "misfired"",
journal="Royal Institute of Public Health and Hygiene journal, The",
year="1966",
author="",
volume="29",
number="2",
pages="50-51",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0370-5609",
doi="",
url="http://dx.doi.org/"
}