@article{ref1,
title="The relative frequency of oligo-symptomatic fractures of the vertebrae after aviation accidents and mishaps; value of their systematic detection",
journal="Médecine Aéronautique et Spatiale",
year="1952",
author="Nicolas, ",
volume="7",
number="4",
pages="354-358",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0294-0817",
doi="",
url="http://dx.doi.org/"
}