@article{ref1,
title="Needs, norms and nudges: the place of behaviour change in health promotion",
journal="Health promotion international",
year="2014",
author="Van den Broucke, Stephan",
volume="29",
number="4",
pages="597-600",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0957-4824",
doi="10.1093/heapro/dau099",
url="http://dx.doi.org/10.1093/heapro/dau099"
}