@article{ref1,
title="Physical activity in leisure time and some aspects of mental health",
journal="Tidsskrift for den Norske Laegeforening",
year="1980",
author="Fasting, K.",
volume="100",
number="12B",
pages="787-792",
abstract="<p>[Abstract unavailable]</p><p>Language: no</p>",
language="no",
issn="0029-2001",
doi="",
url="http://dx.doi.org/"
}