@article{ref1,
title="Man's leisure and his health",
journal="Bulletin of the New York Academy of Medicine",
year="1964",
author="Martin, A. R.",
volume="40",
number="",
pages="21-42",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-7091",
doi="",
url="http://dx.doi.org/"
}