@article{ref1,
title="Vertical take-off and landing (VTOL) rotorless aircraft with inherent stability",
journal="Annals of the New York Academy of Sciences",
year="1961",
author="Laskowitz, I. B.",
volume="93",
number="1",
pages="3-24",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0077-8923",
doi="10.1111/j.1749-6632.1961.tb30485.x",
url="http://dx.doi.org/10.1111/j.1749-6632.1961.tb30485.x"
}