@article{ref1,
title="Philadelphia's recreational project for older people",
journal="Journal of gerontology",
year="1948",
author="Bowen, G. E.",
volume="3",
number="3",
pages="215-219",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1422",
doi="",
url="http://dx.doi.org/"
}