@article{ref1,
title="Effect of health education on the use of recreation by adolescents",
journal="Therapie der Gegenwart",
year="1969",
author="Biener, K.",
volume="108",
number="9",
pages="1333-4 passim",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0040-5965",
doi="",
url="http://dx.doi.org/"
}