@article{ref1,
title="Recurrent brief depression: A new subtype of affective disorder",
journal="Journal of affective disorders",
year="1990",
author="Angst, Jules and Merikangas, Kathleen R. and Scheidegger, P. and Wicki, W.",
volume="19",
number="2",
pages="87-98",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0165-0327",
doi="10.1016/0165-0327(90)90013-X",
url="http://dx.doi.org/10.1016/0165-0327(90)90013-X"
}