@article{ref1,
title="Bullying at school. Basic facts and an effective intervention programme",
journal="Promotion and education",
year="1994",
author="Olweus, Dan",
volume="1",
number="4",
pages="27-31, 48",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1025-3823",
doi="",
url="http://dx.doi.org/"
}