@article{ref1,
title="Coaching in an institution for defective delinquents; an evaluation by means of the critical incident technique",
journal="American journal of mental deficiency",
year="1952",
author="Berk, R. L.",
volume="56",
number="3",
pages="615-621",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9351",
doi="",
url="http://dx.doi.org/"
}