@article{ref1,
title="The test of time: Karl Popper",
journal="Clinical child psychology and psychiatry",
year="2013",
author="Graham, Philip",
volume="18",
number="4",
pages="624-630",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1359-1045",
doi="10.1177/1359104513502141",
url="http://dx.doi.org/10.1177/1359104513502141"
}