@article{ref1,
title="The hippies (a social psychiatric study)",
journal="Nervenarzt",
year="1968",
author="Sluga, W. and Spiel, W.",
volume="39",
number="6",
pages="260-266",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0028-2804",
doi="",
url="http://dx.doi.org/"
}