@article{ref1,
title="Human influence on climate",
journal="Lakartidningen",
year="1972",
author="Landsberg, H. E.",
volume="69",
number="23",
pages="2772-2778",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}