@article{ref1,
title="Increase of traffic accidents in the Distrito Federal, Mexico",
journal="Salud publica de Mexico",
year="1968",
author="Olivares Urbina, C.",
volume="10",
number="2",
pages="233-236",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0036-3634",
doi="",
url="http://dx.doi.org/"
}