@article{ref1,
title="Follow-up evaluation of the performance of driver improvement classes for problem drivers",
journal="Journal of safety research",
year="1969",
author="Schuster, D. H.",
volume="1",
number="2",
pages="80-87",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0022-4375",
doi="",
url="http://dx.doi.org/"
}