@article{ref1,
title="Study of numerical integration techniques for real-time digital flight simulation. AMRL-TR-67-4",
journal="Aerospace medical research laboratories technical reports",
year="1967",
author="Nigro, B. J.",
volume="",
number="",
pages="1-238",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0192-317X",
doi="",
url="http://dx.doi.org/"
}