@article{ref1,
title="Growth of old people's clubs in Japan",
journal="Gerontologist",
year="1975",
author="Maeda, D.",
volume="15",
number="3",
pages="254-256",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0016-9013",
doi="",
url="http://dx.doi.org/"
}