@article{ref1,
title="Optimism versus Hope",
journal="Conservation biology",
year="2007",
author="",
volume="21",
number="6",
pages="1396-1396",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0888-8892",
doi="10.1111/j.1523-1739.2007.00837.x",
url="http://dx.doi.org/10.1111/j.1523-1739.2007.00837.x"
}