@article{ref1,
title="Traffic injuries and deaths in a metropolitan area (Philadelphia, 1964-1967)",
journal="Journal of trauma",
year="1971",
author="Bordner, K. and Spelman, J. W. and Howard, Jamie M.",
volume="11",
number="8",
pages="705-710",
abstract="Abstract unavailable.",
language="",
issn="0022-5282",
doi="",
url="http://dx.doi.org/"
}