@article{ref1,
title="Why don't more children walk to school?",
journal="Journal of safety research",
year="2008",
author="Beck, Laurie F. and Greenspan, Arlene I.",
volume="39",
number="5",
pages="449-452",
abstract="Efforts to promote active travel to school need to address barriers faced by schoolchildren. The purpose of this study was to identify students' usual mode of travel to school and identify the reasons many students do not walk to school.  <p>Language: en</p>",
language="en",
issn="0022-4375",
doi="10.1016/j.jsr.2008.07.002",
url="http://dx.doi.org/10.1016/j.jsr.2008.07.002"
}