@article{ref1,
title="Chemical composition of the stratosphere at 70 km. height",
journal="Nature",
year="1949",
author="Chackett, K. F. and Paneth, F. A. and Wilson, E. J.",
volume="164",
number="4160",
pages="128-128",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-0836",
doi="",
url="http://dx.doi.org/"
}