@article{ref1,
title="Productive activities, mental health and quality of life in disability: exploring the role enhancement and the role strain hypotheses",
journal="BMC psychology",
year="2019",
author="Fekete, Christine and Siegrist, Johannes and Post, Marcel W. M. and Brinkhof, Martin W. G.",
volume="7",
number="1",
pages="1-1",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="2050-7283",
doi="10.1186/s40359-018-0276-6",
url="http://dx.doi.org/10.1186/s40359-018-0276-6"
}