@article{ref1,
title="Housing requirements for a ageing society",
journal="Indoor and built environment",
year="2017",
author="Yu, Chuck and Lee, Yeunsook",
volume="26",
number="4",
pages="441-446",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1420-326X",
doi="10.1177/1420326X17704285",
url="http://dx.doi.org/10.1177/1420326X17704285"
}