@article{ref1,
title="The possibilities of an inhabitable extraterrestrial environment reachable from the earth",
journal="Journal of aviation medicine",
year="1957",
author="Strughold, H.",
volume="28",
number="5",
pages="507-512",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-991X",
doi="",
url="http://dx.doi.org/"
}