@article{ref1,
title="How safe is pupil transportation?",
journal="Pediatrics",
year="1969",
author="Charles, Seymour and Shelness, Anne Marie",
volume="44",
number="5",
pages="880-885",
abstract="Abstract of a study of school bus laws, regulations and practices in the United States, conducted by the Physicians for Automotive Safety.<p /><p>Language: en</p>",
language="en",
issn="0031-4005",
doi="",
url="http://dx.doi.org/"
}