@article{ref1,
title="The earthquake in Managua",
journal="Lancet",
year="1973",
author="Vijil, C.",
volume="1",
number="7795",
pages="146-146",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0140-6736",
doi="",
url="http://dx.doi.org/"
}