@article{ref1,
title="Bicycle ownership, use, and injury patterns among elementary schoolchildren. 1971",
journal="Injury prevention",
year="1995",
author="Waller, Julian A.",
volume="1",
number="4",
pages="256-261",
abstract="Abstract unavailable.",
language="en",
issn="1353-8047",
doi="",
url="http://dx.doi.org/"
}