@article{ref1,
title="Why low-flying fighter planes crash: perceptual and attentional factors in collisions with the ground",
journal="Human factors",
year="1987",
author="Haber, R. N.",
volume="29",
number="5",
pages="519-532",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}