@article{ref1,
title="Psychotherapy using two therapists",
journal="American journal of psychotherapy",
year="1964",
author="Greenbank, R. K.",
volume="18",
number="",
pages="488-499",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9564",
doi="",
url="http://dx.doi.org/"
}