@article{ref1,
title="Two generations of broken homes in the genesis of conduct and behaviour disorders in childhood",
journal="British medical journal: BMJ",
year="1961",
author="Wardle, C. J.",
volume="2",
number="5248",
pages="349-354",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}